How long is the flight from Glasgow to Seattle?

There are many flights that can get you from Glasgow to Seattle in 14h 20m. Fly via Icelandair to get the fastest option. There are 4445 mi between Glasgow and Seattle.

What are the cheapest airlines flying from Glasgow to Seattle round-trip?

Cheapflights users have booked flights from Glasgow to Seattle round-trip from £425. Other airlines that can offer you cheap pricing are KLM, from £433, and Lufthansa, from £454. These flights start at 30% lower than the current average price 3 months from now.

What is the cheapest day to fly from Glasgow to Seattle?

Travellers seeking maximum savings on their Glasgow to Seattle flight should consider departing on Tuesday at midday when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular airlines that fly from Glasgow to Seattle?

Before booking your flight from Glasgow to Seattle check out the most popular airlines for this route: British Airways, Aer Lingus or Icelandair.

What airport do you fly into for flights to Seattle from Glasgow?

Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Glasgow to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Glasgow; the airport handles an average of 0 inbound flights from Glasgow per day. You should also have plenty of airline options to choose from since 9 airlines have flights to the Seattle airport from Glasgow. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

Can I find deals for flights from Glasgow to Seattle that include hotel bookings?

Yes. In addition to deals on Glasgow to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Glasgow to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to Seattle.

Can I find deals for business class flights from Glasgow to Seattle?

Yes. Cheapflights offers flight deals from Glasgow to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£271+ Flights from Glasgow to Seattle

Q: How much does it cost for a return flight from Glasgow to Seattle?

Airfare is below average for this route at the moment. Glasgow to Seattle flights typically cost between £495 and £591 in September. The cheapest return flight price found within the last 3 days was £471 on Icelandair (26 Sept-29 Sept).

Cheapflights Tip: The best prices from Glasgow to Seattle/Tacoma Intl are usually found in January or September, booked 62 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Glasgow to Seattle

Round-trip from	£471
One-way from	£271
Popular in	July
Cheapest in	January
Average price	£524

Icelandair
26/9-29/9
2 total stops
28h 00m total
Glasgow to Seattle

Search Deals

10/12
2 total stops
33h 33m total
Glasgow to Seattle

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£89 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Glasgow to Seattle

Cheapest flights from Glasgow to Seattle
Explore the most affordable flight options available from Glasgow to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 setembro 2025.

sex 26/914:20GLA - SEA

1 stop14h 20mIcelandair

seg 29/915:45SEA - GLA

1 stop13h 40mIcelandair

Deal found 16/9£471

sex 31/1012:35GLA - SEA

1 stop12h 25mIcelandair

sex 7/1114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 16/9£484

ter 9/1212:35GLA - SEA

1 stop12h 25mIcelandair

ter 6/114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 14/9£510

sex 31/1008:25GLA - SEA

1 stop17h 55mMultiple Airlines

sex 7/1120:05SEA - GLA

1 stop11h 55mMultiple Airlines

Deal found 16/9£510

qua 29/1006:05GLA - SEA

1 stop13h 40mMultiple Airlines

qua 5/1115:00SEA - GLA

1 stop33h 30mMultiple Airlines

Deal found 14/9£516

qua 29/1006:05GLA - SEA

2 stops21h 40mDelta

qua 5/1115:00SEA - GLA

1 stop17h 35mDelta

Deal found 14/9£526

sex 12/1211:05GLA - SEA

1 stop13h 55mIcelandair

qui 8/114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 14/9£526

sáb 13/1212:35GLA - SEA

1 stop12h 25mIcelandair

qui 8/114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 14/9£543

seg 8/1211:35GLA - SEA

1 stop13h 20mBritish Airways

ter 6/118:50SEA - GLA

1 stop16h 35mBritish Airways

Deal found 14/9£553

seg 8/1211:35GLA - SEA

1 stop13h 20mBritish Airways

qui 8/113:40SEA - GLA

2 stops17h 30mBritish Airways

Deal found 14/9£556

qua 10/1205:55GLA - SEA

2 stops25h 43mBritish Airways

qua 7/118:50SEA - GLA

1 stop13h 35mBritish Airways

Deal found 14/9£560

qua 10/1205:55GLA - SEA

2 stops25h 43mBritish Airways

qui 8/113:40SEA - GLA

2 stops20h 10mBritish Airways

Deal found 14/9£563

Best flights from Glasgow to Seattle
Discover carefully curated flight deals from Glasgow to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 setembro 2025.

sex 26/914:20GLA - SEA

1 stop14h 20mIcelandair

seg 29/915:45SEA - GLA

1 stop13h 40mIcelandair

Deal found 16/9£471

sex 31/1008:25GLA - SEA

1 stop17h 55mMultiple Airlines

sex 7/1120:05SEA - GLA

1 stop11h 55mMultiple Airlines

Deal found 16/9£510

qua 29/1006:05GLA - SEA

2 stops21h 40mDelta

qua 5/1115:00SEA - GLA

1 stop17h 35mDelta

Deal found 14/9£526

qui 5/312:35GLA - SEA

1 stop12h 25mIcelandair

seg 9/315:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 13/9£508

qua 29/1006:05GLA - SEA

1 stop13h 40mMultiple Airlines

qua 5/1115:00SEA - GLA

1 stop33h 30mMultiple Airlines

Deal found 14/9£516

sex 12/1211:05GLA - SEA

1 stop13h 55mIcelandair

qua 7/114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 14/9£526

qua 10/1212:35GLA - SEA

1 stop12h 25mIcelandair

qua 7/114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 14/9£526

qua 10/1212:35GLA - SEA

1 stop12h 25mIcelandair

qui 8/114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 14/9£526

qui 11/1212:35GLA - SEA

1 stop12h 25mIcelandair

qui 8/114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 14/9£526

Last-minute flights from Glasgow to Seattle
Discover last-minute flight deals from Glasgow to Seattle. Data last updated 17 setembro 2025 and is based on user searches.

sex 26/914:20GLA - SEA

1 stop14h 20mIcelandair

seg 29/915:45SEA - GLA

1 stop13h 40mIcelandair

Deal found 16/9£471

dom 28/910:30GLA - SEA

1 stop33h 15mKLM

dom 5/1017:40SEA - GLA

1 stop30h 30mKLM

Deal found 14/9£570

dom 28/906:00GLA - SEA

2 stops21h 00mDelta

dom 5/1017:40SEA - GLA

1 stop14h 30mDelta

Deal found 14/9£590

qua 29/1006:05GLA - SEA

1 stop13h 40mMultiple Airlines

qua 5/1115:00SEA - GLA

1 stop33h 30mMultiple Airlines

Deal found 14/9£516

qua 29/1006:05GLA - SEA

2 stops21h 40mDelta

qua 5/1115:00SEA - GLA

1 stop17h 35mDelta

Deal found 14/9£526

sex 31/1012:35GLA - SEA

1 stop12h 25mIcelandair

sex 7/1114:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 16/9£484

sex 31/1008:25GLA - SEA

1 stop17h 55mMultiple Airlines

sex 7/1120:05SEA - GLA

1 stop11h 55mMultiple Airlines

Deal found 16/9£510

sex 31/1017:25GLA - SEA

1 stop26h 20mKLM

sex 7/1109:29SEA - GLA

2 stops16h 26mKLM

Deal found 16/9£576

sex 31/1006:05GLA - SEA

2 stops19h 31mDelta

sex 7/1109:29SEA - GLA

2 stops16h 26mDelta

Deal found 16/9£581

sex 31/1010:40GLA - SEA

2 stops19h 33mFinnair

sex 7/1111:42SEA - GLA

2 stops17h 23mFinnair

Deal found 16/9£593

One-way flights from Glasgow to Seattle
Search for one-way flight options from Glasgow to Seattle. Find affordable one-way fares based on user searches. Data last updated 17 setembro 2025.

qua 10/1208:55GLA - SEA

2 stops33h 33mMultiple Airlines

Deal found 14/9£271

sex 3/1007:55GLA - SEA

3 stops42h 32mMultiple Airlines

Deal found 14/9£291

sáb 4/1023:50GLA - SEA

3 stops39h 50mMultiple Airlines

Deal found 14/9£301

sex 9/108:50GLA - SEA

2 stops33h 29mMultiple Airlines

Deal found 14/9£338

ter 14/1021:55GLA - SEA

2 stops29h 53mMultiple Airlines

Deal found 15/9£379

qua 1/1021:45GLA - SEA

2 stops32h 54mMultiple Airlines

Deal found 14/9£381

qui 2/1006:35GLA - SEA

2 stops24h 04mMultiple Airlines

Deal found 14/9£383

qui 16/1018:40GLA - SEA

3 stops58h 28mMultiple Airlines

Deal found 15/9£387

Fly from

Fly to

Route

Depart

Return

Price

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

sex 26/9

14:20-20:40

1 stop14h 20m

Seattle/Tacoma Intl

seg 29/9

15:45-13:25

1 stop13h 40m

£471

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

qui 5/3

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

seg 9/3

15:35-09:55

1 stop11h 20m

£508

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

sex 31/10

08:25-19:20

1 stop17h 55m

Seattle/Tacoma Intl

sex 7/11

20:05-16:00

1 stop11h 55m

£510

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

qua 29/10

06:05-12:45

1 stop13h 40m

Seattle/Tacoma Intl

qua 5/11

15:00-08:30

1 stop33h 30m

£516

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

qua 29/10

06:05-20:45

2 stops21h 40m

Seattle/Tacoma Intl

qua 5/11

15:00-16:35

1 stop17h 35m

£526

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

sex 12/12

11:05-17:00

1 stop13h 55m

Seattle/Tacoma Intl

qua 7/1

14:35-09:55

1 stop11h 20m

£526

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

qua 10/12

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

qua 7/1

14:35-09:55

1 stop11h 20m

£526

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

qua 10/12

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

qui 8/1

14:35-09:55

1 stop11h 20m

£526

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

qui 11/12

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

qui 8/1

14:35-09:55

1 stop11h 20m

£526

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

qua 10/12

08:55-10:28

2 stops33h 33m

£271

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 19 results

Best time to book a flight from Glasgow to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Glasgow with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Glasgow to Seattle

How far ahead should I book a flight from Glasgow to Seattle?

The price you pay for your flight from Glasgow to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Glasgow to Seattle?

Currently, January is the cheapest month in which you can book a flight from Glasgow to Seattle (average of £622). Flying from Glasgow to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GLA to SEA?

One of the essential ways to save on airfare from Glasgow to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 10% on airfare.

How much does it cost for a return flight from Glasgow to Seattle?

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with KLM, Aer Lingus, andIcelandair from Glasgow to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,386 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Aer Lingus

7.2

Good

1,274 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Icelandair

7.0

Good

544 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Lufthansa

6.8

Okay

7,407 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

British Airways

6.7

Okay

7,363 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

What airport do you fly into for flights to Seattle from Glasgow?
Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Glasgow to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Glasgow; the airport handles an average of 0 inbound flights from Glasgow per day. You should also have plenty of airline options to choose from since 9 airlines have flights to the Seattle airport from Glasgow. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.
How long is the flight from Glasgow to Seattle?
There are many flights that can get you from Glasgow to Seattle in 14h 20m. Fly via Icelandair to get the fastest option. There are 4445 mi between Glasgow and Seattle.
What are the cheapest airlines flying from Glasgow to Seattle round-trip?
Cheapflights users have booked flights from Glasgow to Seattle round-trip from £425. Other airlines that can offer you cheap pricing are KLM, from £433, and Lufthansa, from £454. These flights start at 30% lower than the current average price 3 months from now.
Can I find deals for flights from Glasgow to Seattle that include hotel bookings?
Yes. In addition to deals on Glasgow to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Glasgow to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to Seattle.
Can I find deals for business class flights from Glasgow to Seattle?
Yes. Cheapflights offers flight deals from Glasgow to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Glasgow to Seattle?
Currently, January is the cheapest month in which you can book a flight from Glasgow to Seattle (average of £622). Flying from Glasgow to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Tacoma

Leavenworth

Bothell

SeaTac

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Glasgow to Seattle

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£425	Average£586	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£433	Average£603	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£450	Average£607	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Lufthansa	Cheapest£454	Average£597	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£459	Average£592	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£487	Average£614	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£492	Average£597	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Air France	Cheapest£500	Average£632	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Aer Lingus	Cheapest£650	Average£805	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

How does Cheapflights help users find flights from Glasgow to Seattle?

Cheapflights helps you search for flights from Glasgow to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Seattle?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Glasgow to Seattle.

Can Cheapflights find flights from Glasgow to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Glasgow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Glasgow to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Glasgow to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Glasgow to Seattle from £271

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Glasgow to Seattle/Tacoma Intl are usually found in January or September, booked 62 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Glasgow to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Glasgow to Seattle

Cheapest flights from Glasgow to SeattleExplore the most affordable flight options available from Glasgow to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 setembro 2025.

Explore the most affordable flight options available from Glasgow to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 setembro 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Glasgow to Seattle that are best for you.

Best time to book a flight from Glasgow to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Glasgow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Glasgow to Seattle

How far ahead should I book a flight from Glasgow to Seattle?

Use this chart to determine the optimal time to book a return flight from Glasgow to Seattle. Price data was last updated on 12 September 2025.

What is the cheapest month to book a flight from Glasgow to Seattle?

What is the cheapest time of day to fly from GLA to SEA?

Find hourly flight availability from Glasgow to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 setembro 2025.

How much does it cost for a return flight from Glasgow to Seattle?

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with KLM, Aer Lingus, andIcelandair from Glasgow to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Glasgow to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Seattle from Glasgow?

How long is the flight from Glasgow to Seattle?

What are the cheapest airlines flying from Glasgow to Seattle round-trip?

Can I find deals for flights from Glasgow to Seattle that include hotel bookings?

How can I find direct flights from Glasgow to Seattle?

Can I find deals for business class flights from Glasgow to Seattle?

What is the cheapest month to book a flight from Glasgow to Seattle?

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Glasgow to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Glasgow to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Glasgow to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Seattle?

Can Cheapflights find flights from Glasgow to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Glasgow to Seattle become cheaper?

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Cheapest flights from Glasgow to Seattle
Explore the most affordable flight options available from Glasgow to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 setembro 2025.