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Frankfurt

$275+ Cheap flights from Seattle (SEA) to Frankfurt (FRA)

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FRA
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Find cheap flights from Seattle to Frankfurt with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Frankfurt am Main are usually found in January or November, booked 19 days in advance, depart on a Sunday or Monday and return on a Sunday

Cheap flight deals from Seattle to Frankfurt

Cheapest flights from Seattle to Frankfurt
Explore the most affordable flight options available from Seattle to Frankfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This KAYAK deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:25 pm
SEA
-
FRA
2 stops32h 10m
Scandinavian Airlines
Thu 9/248:30 pm
FRA
-
SEA
1 stop26h 15m
Scandinavian Airlines
Deal found 3/18$666
This Cheapflightsfares deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:10 pm
SEA
-
FRA
Nonstop10h 00m
Condor
Wed 4/222:15 pm
FRA
-
SEA
Nonstop10h 25m
Condor
Deal found 3/22$667
This KAYAK deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:30 pm
SEA
-
FRA
2 stops39h 05m
Scandinavian Airlines
Fri 9/43:20 pm
FRA
-
SEA
1 stop31h 25m
Scandinavian Airlines
Deal found 3/18$670
This Booking.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:10 pm
SEA
-
FRA
Nonstop10h 00m
Condor
Wed 9/302:15 pm
FRA
-
SEA
Nonstop10h 25m
Condor
Deal found 3/22$672
This Gotogate deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:40 pm
SEA
-
FRA
Nonstop10h 05m
Condor
Mon 4/272:45 pm
FRA
-
SEA
Nonstop10h 25m
Condor
Deal found 3/21$673
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:40 pm
SEA
-
FRA
Nonstop10h 05m
Condor
Wed 4/292:15 pm
FRA
-
SEA
Nonstop10h 25m
Condor
Deal found 3/21$678
This KAYAK deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:25 pm
SEA
-
FRA
2 stops32h 10m
Scandinavian Airlines
Fri 9/253:20 pm
FRA
-
SEA
1 stop31h 25m
Scandinavian Airlines
Deal found 3/18$682
This Cheapflightsfares deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:40 pm
SEA
-
FRA
Nonstop10h 05m
Condor
Wed 9/22:15 pm
FRA
-
SEA
Nonstop10h 25m
Condor
Deal found 3/18$683

Find flight deals from Seattle to Frankfurt

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Frankfurt (FRA). 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$666
(KAYAK)

One-way from

$275
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$842

Good round-trip deal

$697 or less

Good one-way deal

$501 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Frankfurt am Main flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Frankfurt am Main flights.
Search Deals
From Seattle/Tacoma Intl to Frankfurt am Main
Search Deals
One-way flight from Seattle/Tacoma Intl to Frankfurt am Main
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Frankfurt am Main.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Frankfurt am Main.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Frankfurt 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 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Seattle to Frankfurt am Main Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 8/16

5:40 pm-12:45 pm

Nonstop10h 05m

Frankfurt am Main

Mon 8/31

11:30 am-6:30 pm

1 stop16h 00m

$770

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 8/9

5:40 pm-12:45 pm

Nonstop10h 05m

Frankfurt am Main

Fri 8/21

11:40 am-9:07 pm

1 stop18h 27m

$780
Quickest round-trip

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Wed 8/12

5:40 pm-12:45 pm

Nonstop10h 05m

Frankfurt am Main

Mon 8/24

2:45 pm-4:10 pm

Nonstop10h 25m

$875

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 8/23

9:25 pm-2:35 pm

2 stops32h 10m

Frankfurt am Main

Thu 8/27

8:30 pm-1:45 pm

1 stop26h 15m

$932

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Wed 4/22

7:15 am-2:35 pm

2 stops22h 20m

Frankfurt am Main

Thu 5/7

10:10 am-10:40 pm

2 stops21h 30m

$971

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Thu 8/6

6:05 pm-1:10 pm

Nonstop10h 05m

Frankfurt am Main

Tue 8/18

2:15 pm-3:40 pm

Nonstop10h 25m

$993

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sat 7/4

6:15 pm-1:20 pm

Nonstop10h 05m

Frankfurt am Main

Wed 7/15

2:15 pm-3:40 pm

Nonstop10h 25m

$998

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Thu 8/6

6:05 pm-1:10 pm

Nonstop10h 05m

Frankfurt am Main

Sun 8/23

2:15 pm-3:40 pm

Nonstop10h 25m

$1,052

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 6/28

5:40 pm-12:45 pm

Nonstop10h 05m

Frankfurt am Main

Tue 7/14

2:15 pm-3:40 pm

Nonstop10h 25m

$1,070

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sat 7/11

6:15 pm-1:20 pm

Nonstop10h 05m

Frankfurt am Main

Wed 7/22

2:15 pm-3:40 pm

Nonstop10h 25m

$1,116

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Seattle to Frankfurt

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Frankfurt in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Frankfurt am Main Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Frankfurt am Main Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Frankfurt am Main Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Frankfurt am Main Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Frankfurt am Main Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Frankfurt

Have a flexible travel schedule? Discover the best time to fly to Frankfurt from Seattle with our price prediction graph.
Estimated round-trip 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 Seattle to Frankfurt am Main Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Frankfurt. Price data was last updated on March 13, 2026.

Booking 19 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Frankfurt am Main Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Frankfurt am Main Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Frankfurt am Main Airport (average of $467). Flying from Seattle to Frankfurt am Main Airport in June is currently the most expensive (average of $667). 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 SEA to FRA?

Find hourly flight availability from Seattle to Frankfurt. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 22, 2026.

When flying from Seattle to Frankfurt am Main Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Seattle to Frankfurt am Main Airport?

The best insider tips for Seattle to Frankfurt am Main Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Frankfurt am Main Airport trip
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on FRA

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Frankfurt

Get insights into the airlines that provide service to Frankfurt. 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 Frankfurt. Reviews last updated March 22, 2026.
Get a feel of what it's like to fly with Alaska Airlines,United Airlines, andIcelandair from Seattle to Frankfurt am Main Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,097 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Entertainment

7.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,097 reviews
Alaska Airlines
7.9
Good
12,097 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Entertainment

7.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,460 reviews
Alaska Airlines
7.9
Good
12,097 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Entertainment

7.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Icelandair
7.0
Good
625 reviews
Alaska Airlines
7.9
Good
12,097 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Entertainment

7.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Lufthansa
6.8
Okay
7,862 reviews
Alaska Airlines
7.9
Good
12,097 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Entertainment

7.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Condor
6.5
Okay
401 reviews
Alaska Airlines
7.9
Good
12,097 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Entertainment

7.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Frankfurt. 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 from for flights from Seattle to Frankfurt am Main?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Frankfurt am Main. You should not have trouble finding flights to Frankfurt am Main from Seattle/Tacoma Intl; the airport handles an average of 2 outbound flights to Frankfurt am Main per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Seattle airport to Frankfurt am Main. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

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

    Condor and Scandinavian Airlines can get you from Seattle to Frankfurt am Main Airport in just under 10h 05m. Your travel time can differ by up to 22h 05m. Seattle and Frankfurt am Main Airport are separated by a distance of 5089 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to Frankfurt am Main Airport round-trip?

    Currently priced at $468, Icelandair will fly you from Seattle to Frankfurt am Main Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Aer Lingus and Condor - these airlines can fly you to your destination from $552 and $555, respectively. Icelandair is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Frankfurt am Main Airport one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $247. Scandinavian Airlines flights start at $279 while deals on Condor start at $340 one-way.

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

    The top 3 most reliable airlines when flying from Seattle to Frankfurt am Main Airport are Condor (69%), Alaska Airlines (69%) and Air Canada (67%).

  • What are the cheapest flights from Seattle to Frankfurt am Main Airport?

    Looking at all options, your cheapest flight can be booked for $378. While the most popular route (Seattle/Tacoma Intl - Frankfurt am Main) can be booked for $614 on average, our data indicates $1,627 when flying from Seattle to Frankfurt am Main Airport.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Frankfurt am Main Airport (average of $467). Flying from Seattle to Frankfurt am Main Airport in June is currently the most expensive (average of $667). 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

Traveling to a place near Frankfurt am Main Airport?

Book flights to Frankfurt am Main Airport if you plan to visit one of these locations
Koblenz
Wurzburg
Baden-Baden
Speyer
Heilbronn
Trier
Boppard
Mainz

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Alternative routes for Seattle to Frankfurt

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Frankfurt flights
Seattle to Frankfurt-Hahn flights
Spokane to Frankfurt flights

Top 6 airlines flying from Seattle to Frankfurt

Discover the top 6 airlines that operate flights from Seattle to Frankfurt. 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 2,558,603 searches. Data last updated March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$468Average$658FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$552Average$727FlexibilityNo cancel feeOn-timeN/A
CondorCheapest$555Average$741FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$639Average$879FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$648Average$985FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$814Average$996FlexibilityNo cancel feeOn-time75%

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