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Cheap flights from Portsmouth to Seattle from £594

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
18 Sep — 25 Sep1
1 adult

Cheap flight deals from Portsmouth to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Portsmouth (P0R) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 September 2024.

Round-trip from

£619
Delta
  • Delta
  • 26/9-30/9
  • 3 total stops
  • 51h 35m total
  • Portsmouth to Seattle
Search Deals

Cheap Delta flights from Portsmouth to Seattle

Explore cheap flight options specifically provided by Delta for the route between Portsmouth and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 1,006,798 searches. Data last updated 13 September 2024.
Take a peek at the cheapest Delta flights we've detected travelling from Portsmouth to Seattle. Make sure to check back often as deals are often changing.
Thu 19/919:40SOU - SEA
1 stop22h 40mDelta
Mon 23/911:30SEA - SOU
2 stops21h 20mDelta
Deal found 12/9£594
Thu 19/907:55SOU - SEA
2 stops22h 35mDelta
Mon 23/911:30SEA - SOU
2 stops21h 20mDelta
Deal found 12/9£599
Thu 26/917:20SOU - SEA
1 stop25h 00mDelta
Mon 30/906:15SEA - SOU
2 stops26h 35mDelta
Deal found 11/9£619
Thu 26/907:55SOU - SEA
2 stops22h 18mDelta
Mon 30/922:59SEA - SOU
2 stops24h 26mDelta
Deal found 11/9£624

Cheap British Airways flights from Portsmouth to Seattle

Explore cheap flight options specifically provided by British Airways for the route between Portsmouth and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 1,006,798 searches. Data last updated 13 September 2024.
Have a look at some of the cheapest available British Airways flights departing from Portsmouth and landing in Seattle. Make sure to examine the flight information before completing your reservation.
Wed 18/909:45SOU - SEA
1 stop15h 16mBritish Airways
Wed 25/911:52SEA - SOU
2 stops23h 38mBritish Airways
Deal found 11/9£765
Sun 6/1019:55SOU - SEA
2 stops23h 40mBritish Airways
Sat 26/1013:50SEA - SOU
2 stops16h 15mBritish Airways
Deal found 12/9£813
Sun 6/1019:55SOU - SEA
2 stops23h 40mBritish Airways
Sat 26/1018:45SEA - SOU
1 stop17h 55mBritish Airways
Deal found 12/9£838
Wed 18/919:55SOU - SEA
2 stops23h 35mBritish Airways
Wed 25/908:00SEA - SOU
2 stops27h 30mBritish Airways
Deal found 11/9£866
Mon 14/1019:55SOU - SEA
2 stops29h 50mBritish Airways
Fri 18/1018:45SEA - SOU
1 stop13h 00mBritish Airways
Deal found 11/9£11,303
Mon 14/1019:55SOU - SEA
2 stops23h 40mBritish Airways
Fri 18/1013:30SEA - SOU
2 stops15h 50mBritish Airways
Deal found 11/9£11,330
Mon 14/1009:40SOU - SEA
1 stop15h 21mBritish Airways
Fri 18/1018:45SEA - SOU
1 stop13h 00mBritish Airways
Deal found 11/9£12,060
Wed 18/909:45SOU - SEA
1 stop15h 16mBritish Airways
Wed 25/918:45SEA - SOU
1 stop16h 45mBritish Airways
Deal found 11/9£12,286

Cheap Portsmouth to Seattle flights in September & October 2024

Find cheap flight options from Portsmouth to Seattle specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 1,006,798 searches. Prices were last updated on 13 September 2024.
Scroll through some of the best deals on flights from Portsmouth to Seattle in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 19/919:40SOU - SEA
1 stop22h 40mDelta
Mon 23/911:30SEA - SOU
2 stops21h 20mDelta
Deal found 12/9£594
Thu 19/919:40SOU - SEA
1 stop29h 10mKLM
Mon 23/918:10SEA - SOU
1 stop17h 00mKLM
Deal found 12/9£602
Wed 18/909:45SOU - SEA
1 stop15h 16mBritish Airways
Wed 25/911:52SEA - SOU
2 stops23h 38mBritish Airways
Deal found 11/9£765

Portsmouth to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Portsmouth and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 1,006,798 searches. Data last updated 13 September 2024.
Scroll through some of the best deals on flights from Portsmouth to Seattle in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 19/919:40SOU - SEA
1 stop22h 40mDelta
Mon 23/911:30SEA - SOU
2 stops21h 20mDelta
Deal found 12/9£594
Thu 19/919:40SOU - SEA
1 stop29h 10mKLM
Mon 23/918:10SEA - SOU
1 stop17h 00mKLM
Deal found 12/9£602
Wed 18/909:45SOU - SEA
1 stop15h 16mBritish Airways
Wed 25/911:52SEA - SOU
2 stops23h 38mBritish Airways
Deal found 11/9£765

Portsmouth to Seattle flights leaving soon

Find last-minute flight options from Portsmouth to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 1,006,798 searches. Data last updated 13 September 2024.
Have a look at some of the last-minute flights available departing from Portsmouth to Seattle. Users should examine the flight details to ensure there are no surprises.
Thu 19/919:40SOU - SEA
1 stop22h 40mDelta
Mon 23/911:30SEA - SOU
2 stops21h 20mDelta
Deal found 12/9£594
Thu 19/907:55SOU - SEA
2 stops22h 35mDelta
Mon 23/911:30SEA - SOU
2 stops21h 20mDelta
Deal found 12/9£599
Thu 19/919:40SOU - SEA
1 stop29h 10mKLM
Mon 23/918:10SEA - SOU
1 stop17h 00mKLM
Deal found 12/9£602
Wed 18/909:45SOU - SEA
1 stop15h 16mBritish Airways
Wed 25/911:52SEA - SOU
2 stops23h 38mBritish Airways
Deal found 11/9£765
Wed 18/919:55SOU - SEA
2 stops23h 35mBritish Airways
Wed 25/908:00SEA - SOU
2 stops27h 30mBritish Airways
Deal found 11/9£866
Wed 18/909:45SOU - SEA
1 stop15h 16mBritish Airways
Wed 25/918:45SEA - SOU
1 stop16h 45mBritish Airways
Deal found 11/9£12,286

Find flights from Portsmouth to Seattle within your budget

Customise your flight search to find flights from Portsmouth to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 1,006,798 searches. Data last updated 13 September 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£619 - £12,060

Route

Depart

Return

Price

Southampton EastleighSeattle/Tacoma Intl

SOU - SEA

SOUSEA

Southampton Eastleigh

Thu 26/9

1 stop25h 00m

Seattle/Tacoma Intl

Mon 30/9

2 stops26h 35m

£619

Southampton EastleighSeattle/Tacoma Intl

SOU - SEA

SOUSEA

Southampton Eastleigh

Thu 26/9

2 stops22h 18m

Seattle/Tacoma Intl

Mon 30/9

2 stops24h 26m

£624

Southampton EastleighSeattle/Tacoma Intl

SOU - SEA

SOUSEA

Southampton Eastleigh

Sun 6/10

2 stops23h 40m

Seattle/Tacoma Intl

Sat 26/10

2 stops16h 15m

£813

Southampton EastleighSeattle/Tacoma Intl

SOU - SEA

SOUSEA

Southampton Eastleigh

Sun 6/10

2 stops23h 40m

Seattle/Tacoma Intl

Sat 26/10

1 stop17h 55m

£838

Southampton EastleighSeattle/Tacoma Intl

SOU - SEA

SOUSEA

Southampton Eastleigh

Mon 14/10

2 stops29h 50m

Seattle/Tacoma Intl

Fri 18/10

1 stop13h 00m

£11,303

Southampton EastleighSeattle/Tacoma Intl

SOU - SEA

SOUSEA

Southampton Eastleigh

Mon 14/10

2 stops23h 40m

Seattle/Tacoma Intl

Fri 18/10

2 stops15h 50m

£11,330

Southampton EastleighSeattle/Tacoma Intl

SOU - SEA

SOUSEA

Southampton Eastleigh

Mon 14/10

1 stop15h 21m

Seattle/Tacoma Intl

Fri 18/10

1 stop13h 00m

£12,060

Flights are sorted by cheapest first

Deals found on 11/9

Best time to book a flight from Portsmouth to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Portsmouth 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.

Travel insights for flights from Portsmouth to Seattle

Get recent, data-driven insights about flights from Portsmouth to Seattle including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Portsmouth to Seattle (average of £303). Flying from Portsmouth to Seattle in August is currently the most expensive (average of £526). 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 P0R to SEA?

Find hourly flight availability from Portsmouth 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 13 September 2024.

It’s optimal to fly from Portsmouth to Seattle at midday. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the evening.

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Seattle. Price data was last updated on 8 September 2024.

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

Find deals

Weekly flight availability from Portsmouth to Seattle

Explore weekly flight availability from Portsmouth to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 September 2024.

The most flights from P0R to SEA are scheduled on a Wednesday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

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.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 13 September 2024.
Read through reviews of airlines operating flights from Portsmouth to Seattle, such as Delta and British Airways. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
9,116 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Delta
8.0
Very Good
9,116 reviews
Delta
8.0
Very Good
9,116 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

British Airways
6.7
Okay
6,805 reviews
Delta
8.0
Very Good
9,116 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Related info for your journey

Find useful and relevant information for your journey from Portsmouth 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 Portsmouth?

    For a flight from Portsmouth to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 inbound flights from Portsmouth per day. 13 airlines have flights to Seattle/Tacoma Intl from Portsmouth on a regular basis.

  • Can I find flights from Portsmouth to Seattle for under £700 on Cheapflights?

    Yes, there are multiple flights from Portsmouth to Seattle for under £700. The cheapest flight booked recently is on Delta for just £619, but on average you can expect to pay £5,369.

  • Are there last-minute flights available from Portsmouth to Seattle for under £600?

    There are currently 6+ open flights from Portsmouth to Seattle within the next 7 days for less than £600.

  • What days are direct flights available from Portsmouth to Seattle?

    Days when direct flights are available for this flight are: Friday.

  • How many flights depart from Portsmouth to Seattle on average per day?

    Travellers can expect 1 flight from Portsmouth to Seattle on average per day.
    Afternoon (Midday - 6pm) - 100% of flight departures

  • How long is the flight from Portsmouth to Seattle?

    For as low as £619, Delta can have you in Seattle from Portsmouth in 23h 40m. The distance from Portsmouth to Seattle is about 4812 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Portsmouth to Seattle?

    Before booking your flight to Seattle from Portsmouth, check out the most reliable airlines to get you to your destination on time: KLM (74%), Air France (74%), Delta( 74%).

  • What are the cheapest flights from Portsmouth to Seattle?

    Looking for the cheapest flight from Portsmouth to Seattle? While on average our users pay £1,887, our data indicates the cheapest price to be £481. The most popular route (Southampton Eastleigh - Seattle/Tacoma Intl), is priced around £594.

  • What does LHR to SEA mean?

    London Heathrow Airport is LHR and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), Southampton Eastleigh Airport (SOU) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Portsmouth to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Portsmouth to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portsmouth to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portsmouth to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Portsmouth to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Portsmouth 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.

  • Can I find deals for flights from Portsmouth to Seattle that allow pets onboard?

    Many airlines flying from Portsmouth to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portsmouth to Seattle?

    Yes, you can often find last-minute deals on Portsmouth to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portsmouth to Seattle flight deals updated?

    The Portsmouth to Seattle flight deals you see on this page were last updated on 12/9.

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

    Currently, November is the cheapest month in which you can book a flight from Portsmouth to Seattle (average of £303). Flying from Portsmouth to Seattle in August is currently the most expensive (average of £526). 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

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Alternative routes for Portsmouth to Seattle
See prices for flight routes from nearby airports that may be better suited for you.

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Top 10 airlines flying from Portsmouth to Seattle

Discover the top 10 airlines that operate flights from Portsmouth to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 1,006,798 searches. Data last updated 13 September 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£247Average£506FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest£297Average£504FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£364Average£623FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£379Average£534FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
American AirlinesCheapest£398Average£492FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£403Average£555FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£420Average£504FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£421Average£500FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£426Average£577FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£431Average£622FlexibilityNo cancel feeOn-time75%
Search KLM flights
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Search flights from Portsmouth to Seattle by cabin class

Find flights from Portsmouth to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
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Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Portsmouth today with Cheapflights!

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

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

Yes, we can. To see specific flights from Portsmouth to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Portsmouth today and book when prices fit your budget.

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