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$265+ Cheap flights from Seattle (SEA) to Warsaw

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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — WAW
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Warsaw are usually found in September or November, booked 74 days in advance, depart on a Tuesday or Sunday and return on a Sunday

Cheap flight deals from Seattle to Warsaw

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Warsaw (WA1). 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 September 15, 2025.

Round-trip from

$394
(CrystalTravel)

One-way from

$265
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$536
From Seattle/Tacoma Intl to Warsaw
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One-way flight from Seattle/Tacoma Intl to Warsaw
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Highest demand for flights based on searches. 22% potential increase in price ($239 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Seattle to Warsaw

Cheapest flights from Seattle to Warsaw
Explore the most affordable flight options available from Seattle to Warsaw. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This CrystalTravel deal was found by Cheapflights users on 9/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/141:40 pmSEA - WAW
2 stops20h 05mScandinavian Airlines
Fri 10/2410:15 amWAW - SEA
1 stop12h 45mScandinavian Airlines
Deal found 9/14$394
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:45 pmSEA - WAW
2 stops20h 40mScandinavian Airlines
Wed 10/2210:15 amWAW - SEA
1 stop12h 45mScandinavian Airlines
Deal found 9/13$398
This AirNGo deal was found by Cheapflights users on 9/13. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:25 pmSEA - WAW
2 stops19h 00mScandinavian Airlines
Fri 10/1710:15 amWAW - SEA
1 stop12h 45mScandinavian Airlines
Deal found 9/13$406
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:25 pmSEA - WAW
2 stops51h 10mScandinavian Airlines
Thu 10/233:00 pmWAW - SEA
1 stop32h 00mScandinavian Airlines
Deal found 9/15$410
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/112:10 pmSEA - WAW
2 stops19h 45mScandinavian Airlines
Fri 10/2410:15 amWAW - SEA
1 stop12h 45mScandinavian Airlines
Deal found 9/15$429
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:40 pmSEA - WAW
2 stops38h 15mScandinavian Airlines
Wed 10/2210:15 amWAW - SEA
1 stop12h 45mScandinavian Airlines
Deal found 9/15$438
This Justfly.com deal was found by Cheapflights users on 9/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:55 pmSEA - WAW
2 stops38h 00mScandinavian Airlines
Tue 10/213:00 pmWAW - SEA
1 stop32h 00mScandinavian Airlines
Deal found 9/15$440
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:45 amSEA - WAW
2 stops26h 10mScandinavian Airlines
Thu 10/237:45 pmWAW - SEA
1 stop27h 15mScandinavian Airlines
Deal found 9/15$447
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 9/264:20 pmSEA - WMI
1 stop34h 55mMultiple Airlines
Mon 10/610:05 pmWMI - SEA
2 stops30h 47mMultiple Airlines
Deal found 9/14$857
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/104:20 pmSEA - WMI
1 stop34h 55mMultiple Airlines
Thu 10/236:45 amWMI - SEA
2 stops37h 04mMultiple Airlines
Deal found 9/15$866
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 9/264:20 pmSEA - WMI
1 stop34h 55mMultiple Airlines
Fri 10/36:05 amWMI - SEA
2 stops22h 47mMultiple Airlines
Deal found 9/14$898
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 9/277:45 amSEA - WMI
2 stops19h 30mMultiple Airlines
Sun 10/59:05 amWMI - SEA
1 stop13h 55mMultiple Airlines
Deal found 9/14$920

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Warsaw 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 September 15, 2025.
Use the filters below to find and compare flights from Seattle to Warsaw that are best for you.

Fly from

Seattle

Fly to

Warsaw

Route

Depart

Return

Price

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Fri 10/17

12:45 pm-6:25 pm

2 stops20h 40m

Warsaw Frederic Chopin

Wed 10/22

10:15 am-2:00 pm

1 stop12h 45m

$399

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Tue 10/14

2:10 pm-9:35 am

2 stops34h 25m

Warsaw Frederic Chopin

Fri 10/24

10:15 am-2:00 pm

1 stop12h 45m

$399

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Fri 10/10

7:40 pm-6:55 pm

2 stops38h 15m

Warsaw Frederic Chopin

Wed 10/22

10:15 am-2:00 pm

1 stop12h 45m

$438

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Sat 10/11

2:10 pm-9:35 am

2 stops34h 25m

Warsaw Frederic Chopin

Wed 10/22

10:15 am-2:00 pm

1 stop12h 45m

$457

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Sat 9/27

7:45 am-6:55 pm

2 stops26h 10m

Warsaw Frederic Chopin

Thu 10/23

7:45 pm-2:00 pm

1 stop27h 15m

$487

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Thu 9/25

2:25 pm-9:35 am

2 stops34h 10m

Warsaw Frederic Chopin

Thu 10/23

7:45 pm-2:00 pm

1 stop27h 15m

$487

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Fri 10/10

9:25 pm-6:55 pm

2 stops36h 30m

Warsaw Frederic Chopin

Mon 10/27

3:00 pm-10:27 pm

2 stops39h 27m

$493

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Sat 9/27

2:30 pm-9:35 am

2 stops34h 05m

Warsaw Frederic Chopin

Fri 10/24

10:15 am-2:00 pm

1 stop12h 45m

$497

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Thu 9/25

12:45 pm-9:35 am

2 stops35h 50m

Warsaw Frederic Chopin

Fri 10/24

10:15 am-2:00 pm

1 stop12h 45m

$497

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Fri 9/26

4:20 pm-12:15 pm

1 stop34h 55m

Warsaw Modlin

Mon 10/6

10:05 pm-7:52 pm

2 stops30h 47m

$857

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 37 results
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Best time to book a flight from Seattle to Warsaw

Have a flexible travel schedule? Discover the best time to fly to Warsaw 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 Warsaw

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Warsaw. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Warsaw, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Warsaw (average of $576). Flying from Seattle to Warsaw in June is currently the most expensive (average of $1,019). 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 WAW?

Find hourly flight availability from Seattle to Warsaw. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s optimal to fly from Seattle to Warsaw in the evening. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Warsaw. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Warsaw flight should consider departing on Friday evenings 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.

Reviews of airlines servicing Warsaw

Get insights into the airlines that provide service to Warsaw. 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 Warsaw. Reviews last updated September 15, 2025.
See what other customers who have flown with Delta, KLM, and Scandinavian Airlines from Seattle to Warsaw have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,385 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.4
Good
1,484 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,407 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Seattle to Warsaw. 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 Warsaw?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Warsaw from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Warsaw should be relatively easy as there are 0 daily outbound flights to Warsaw from 9 different airlines.

  • How long is the flight from Seattle to Warsaw?

    A quick flight from Seattle to Warsaw can take about 20h 40m. Scandinavian Airlines provides one of the quickest options available for as low as $399. Seattle and Warsaw are separated by a distance of 5217 mi.

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

    Finnair, at $397, was found to be the cheapest airline from Seattle to Warsaw.Alternate airlines to your destination round-trip include British Airways and Scandinavian Airlines. Users have found that Finnair is 51% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Warsaw 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 Warsaw?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Warsaw (average of $576). Flying from Seattle to Warsaw in June is currently the most expensive (average of $1,019). 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

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.

Top 9 airlines flying from Seattle to Warsaw

Discover the top 9 airlines that operate flights from Seattle to Warsaw. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$397Average$886FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$433Average$787FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$451Average$682FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$571Average$983FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$584Average$687FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$639Average$914FlexibilityNo cancel feeOn-time76%
KLMCheapest$650Average$876FlexibilityNo cancel feeOn-time75%
DeltaCheapest$656Average$1,159FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$678Average$778FlexibilityNo cancel feeOn-time77%

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