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Cheap flights from Frankfurt am Main Airport to Seattle from £425

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — SEA
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Frankfurt to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Frankfurt (FRA) 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 19 August 2025.

Round-trip from

£425

Popular in

July

Cheapest in

March

Average price

£573
United Airlines
  • United Airlines
  • 7/9-5/10
  • 1 total stop
  • 25h 19m total
  • Frankfurt am Main to Seattle
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Highest demand for flights based on searches. 13% potential increase in price (£56 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Frankfurt to Seattle

Cheapest flights from Frankfurt to Seattle
Explore the most affordable flight options available from Frankfurt to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Sun 7/910:15FRA - SEA
1 stop15h 44mUnited Airlines
Sun 5/1014:20SEA - FRA
Nonstop9h 35mUnited Airlines
Deal found 17/8£425
Fri 5/910:45FRA - SEA
Nonstop10h 10mUnited Airlines
Sun 21/914:20SEA - FRA
Nonstop9h 35mUnited Airlines
Deal found 18/8£426
Wed 17/910:15FRA - SEA
1 stop15h 44mUnited Airlines
Fri 31/1007:00SEA - FRA
1 stop23h 00mUnited Airlines
Deal found 18/8£426
Sat 13/910:15FRA - SEA
1 stop17h 21mUnited Airlines
Mon 6/1010:00SEA - FRA
1 stop13h 05mUnited Airlines
Deal found 17/8£427
Fri 19/910:45FRA - SEA
Nonstop10h 10mUnited Airlines
Thu 16/1015:28SEA - FRA
1 stop14h 47mUnited Airlines
Deal found 18/8£428
Mon 29/1210:15FRA - SEA
2 stops21h 13mUnited Airlines
Sun 4/105:02SEA - FRA
1 stop19h 18mUnited Airlines
Deal found 18/8£429
Sun 21/910:45FRA - SEA
Nonstop10h 10mUnited Airlines
Fri 3/1007:15SEA - FRA
2 stops17h 50mUnited Airlines
Deal found 17/8£431
Sat 20/912:20FRA - SEA
1 stop17h 22mLufthansa
Wed 15/1014:20SEA - FRA
Nonstop9h 35mLufthansa
Deal found 18/8£431
Thu 4/909:15FRA - SEA
2 stops18h 34mUnited Airlines
Wed 17/911:11SEA - FRA
2 stops17h 54mUnited Airlines
Deal found 18/8£432
Thu 2/1013:10FRA - SEA
2 stops18h 20mUnited Airlines
Thu 9/1014:55SEA - FRA
2 stops18h 10mUnited Airlines
Deal found 18/8£435
Mon 1/911:20FRA - SEA
1 stop20h 39mUnited Airlines
Fri 19/922:55SEA - FRA
1 stop23h 25mUnited Airlines
Deal found 18/8£437
Sun 28/907:00FRA - SEA
1 stop13h 45mDelta
Fri 3/1023:20SEA - FRA
1 stop24h 35mDelta
Deal found 18/8£438

Cheapflights Fare Finder

 
Customise your flight search to find flights from Frankfurt 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 858,174 searches. Data last updated 19 August 2025.
Use the filters below to find and compare flights from Frankfurt am Main Airport to Seattle that are best for you.

Fly from

Frankfurt

Fly to

Seattle

Route

Depart

Return

Price

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Wed 10/9

09:15-16:59

1 stop16h 44m

Seattle/Tacoma Intl

Mon 6/10

08:30-09:20

1 stop15h 50m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Wed 17/9

10:55-19:09

1 stop17h 14m

Seattle/Tacoma Intl

Fri 31/10

14:52-15:40

2 stops16h 48m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Sun 7/9

10:15-16:59

1 stop15h 44m

Seattle/Tacoma Intl

Fri 10/10

05:30-08:05

1 stop17h 35m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Sun 7/9

10:15-16:59

1 stop15h 44m

Seattle/Tacoma Intl

Tue 7/10

10:50-09:55

1 stop14h 05m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Wed 10/9

12:15-16:59

1 stop13h 44m

Seattle/Tacoma Intl

Fri 10/10

14:20-08:55

Nonstop9h 35m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Fri 5/9

12:15-16:59

1 stop13h 44m

Seattle/Tacoma Intl

Sun 21/9

07:15-08:10

1 stop15h 55m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Sun 7/9

10:15-16:59

1 stop15h 44m

Seattle/Tacoma Intl

Thu 9/10

14:20-08:55

Nonstop9h 35m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Sun 7/9

10:15-16:59

1 stop15h 44m

Seattle/Tacoma Intl

Wed 8/10

15:28-15:15

1 stop14h 47m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Sun 7/9

10:15-16:59

1 stop15h 44m

Seattle/Tacoma Intl

Mon 6/10

13:12-12:10

1 stop13h 58m

£425

Frankfurt am MainSeattle

FRA - SEA

FRASEA

Frankfurt am Main

Fri 12/9

12:15-16:59

1 stop13h 44m

Seattle/Tacoma Intl

Tue 7/10

14:20-08:55

Nonstop9h 35m

£425

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 19 results
1
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Best time to book a flight from Frankfurt to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Frankfurt 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 Frankfurt am Main Airport to Seattle

How far ahead should I book a flight from Frankfurt am Main Airport to Seattle?

Use this chart to determine the optimal time to book a return flight from Frankfurt to Seattle. Price data was last updated on 8 August 2025.

The price you pay for your flight from Frankfurt am Main Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 79 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 Frankfurt am Main Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Frankfurt am Main Airport to Seattle (average of £622). Flying from Frankfurt am Main Airport 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 FRA to SEA?

Find hourly flight availability from Frankfurt 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 19 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Frankfurt am Main Airport to Seattle as you normally would.

Weekly flight availability from Frankfurt am Main Airport to Seattle

Explore weekly flight availability from Frankfurt 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 19 August 2025.

The most flights from FRA to SEA are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost for a return flight from Frankfurt am Main Airport to Seattle?

Related info for your journey

Find useful and relevant information for your journey from Frankfurt 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 Frankfurt am Main?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Frankfurt am Main. Booking flights from Frankfurt am Main to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 5 daily inbound flights from Frankfurt am Main from 0 different airlines.

  • How long is the flight from Frankfurt am Main Airport to Seattle?

    Airlines like United Airlines and British Airways fly from Frankfurt am Main Airport to Seattle in about 16h 44m. The time it takes to get you to your destination can typically vary by up to 30m. The distance from Frankfurt am Main Airport to Seattle is about 5089 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Frankfurt am Main Airport to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Frankfurt am Main Airport to Seattle on time: Air Canada (71%), United Airlines (71%), Lufthansa (71%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Frankfurt 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 Frankfurt am Main Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Frankfurt am Main Airport to Seattle (average of £622). Flying from Frankfurt am Main Airport 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
SeaTac

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