HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Warsaw

$260+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — WAW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Warsaw 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Warsaw are usually found in November or February, booked 81 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 June 12, 2025.

Round-trip from

$696
(United Airlines)

One-way from

$260
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$1,282
From Seattle/Tacoma Intl to Warsaw
Search Deals
One-way flight from Seattle/Tacoma Intl to Warsaw
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:10 amSEA - WAW
3 stops20h 20mUnited Airlines
Wed 9/39:40 amWAW - SEA
2 stops20h 02mUnited Airlines
Deal found 6/10$696
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:20 amSEA - WAW
2 stops23h 55mAir Canada
Mon 9/89:40 amWAW - SEA
2 stops37h 36mAir Canada
Deal found 6/10$701
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:30 pmSEA - WAW
1 stop19h 00mBritish Airways
Tue 9/26:50 pmWAW - SEA
1 stop32h 30mBritish Airways
Deal found 6/10$709
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 8/294:00 pmSEA - WAW
1 stop17h 25mScandinavian Airlines
Tue 9/23:00 pmWAW - SEA
1 stop31h 50mScandinavian Airlines
Deal found 6/10$710
This Air France deal was found by Cheapflights users on 6/9. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/221:30 pmSEA - WAW
1 stop13h 25mMultiple Airlines
Wed 8/137:40 pmWAW - SEA
1 stop24h 55mMultiple Airlines
Deal found 6/9$715
This FlightHub deal was found by Cheapflights users on 6/10. 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 10/176:50 pmSEA - WAW
1 stop18h 10mLufthansa
Fri 10/316:25 pmWAW - SEA
1 stop26h 45mLufthansa
Deal found 6/10$720
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/21:35 pmSEA - WAW
2 stops19h 50mAmerican Airlines
Sun 8/241:00 pmWAW - SEA
2 stops19h 40mAmerican Airlines
Deal found 6/10$727
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:00 amSEA - WAW
2 stops19h 10mSWISS
Sat 9/62:55 pmWAW - SEA
2 stops36h 41mSWISS
Deal found 6/10$747
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/263:55 pmSEA - WAW
2 stops32h 40mDelta
Sun 9/76:05 amWAW - SEA
1 stop20h 35mDelta
Deal found 6/10$773
This Turkish Airlines deal was found by Cheapflights users on 6/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:10 pmSEA - WAW
1 stop29h 20mTurkish Airlines
Wed 8/610:50 amWAW - SEA
1 stop32h 45mTurkish Airlines
Deal found 6/11$824
This Icelandair deal was found by Cheapflights users on 6/12. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:00 pmSEA - WAW
2 stops14h 25mIcelandair
Wed 10/87:35 pmWAW - SEA
2 stops34h 05mIcelandair
Deal found 6/12$1,018
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/263:45 pmSEA - WMI
2 stops23h 05mMultiple Airlines
Sat 8/26:50 amWMI - SEA
3 stops44h 48mMultiple Airlines
Deal found 6/11$1,220

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 June 12, 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

Tue 8/26

7:10 am-12:30 pm

3 stops20h 20m

Warsaw Frederic Chopin

Wed 9/3

9:40 am-8:42 pm

2 stops20h 02m

$696

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Sun 8/24

7:20 am-4:15 pm

2 stops23h 55m

Warsaw Frederic Chopin

Mon 9/8

9:40 am-2:16 pm

2 stops37h 36m

$701

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Tue 8/26

1:30 pm-5:30 pm

1 stop19h 00m

Warsaw Frederic Chopin

Tue 9/2

6:50 pm-6:20 pm

1 stop32h 30m

$709

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Fri 8/29

4:00 pm-9:35 am

1 stop32h 35m

Warsaw Frederic Chopin

Sat 9/6

10:15 am-1:50 pm

1 stop12h 35m

$710

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Tue 7/22

1:30 pm-11:55 am

1 stop13h 25m

Warsaw Frederic Chopin

Wed 8/13

7:40 pm-11:35 am

1 stop24h 55m

$715

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Fri 10/17

6:50 pm-10:00 pm

1 stop18h 10m

Warsaw Frederic Chopin

Fri 10/31

6:25 pm-1:10 pm

1 stop26h 45m

$720

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Sat 8/2

1:35 pm-6:25 pm

2 stops19h 50m

Warsaw Frederic Chopin

Sun 8/24

1:00 pm-11:40 pm

2 stops19h 40m

$727

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Mon 8/25

10:00 am-2:10 pm

2 stops19h 10m

Warsaw Frederic Chopin

Sat 9/6

2:55 pm-6:36 pm

2 stops36h 41m

$747

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Tue 8/26

3:55 pm-9:35 am

2 stops32h 40m

Warsaw Frederic Chopin

Sun 9/7

6:05 am-5:40 pm

1 stop20h 35m

$773

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

Tue 7/8

7:10 pm-9:30 am

1 stop29h 20m

Warsaw Frederic Chopin

Wed 8/6

10:50 am-10:35 am

1 stop32h 45m

$824

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 22 results
1
2
3

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 June 9, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Warsaw, you should look to book at least 81 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 $1,052). 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 June 12, 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.

Rainfall in Warsaw by month

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

In terms of precipitation, rainfall in Warsaw ranges from 0.8 - 2.8 inches per month. July is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Warsaw when rainfall is around 0.8 in.

Temperature in Warsaw by month

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

If weather is an important factor for your trip to Warsaw, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Delta, Finnair and SWISS from Seattle to Warsaw. 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
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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!
Turkish Airlines
7.3
Good
3,848 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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.

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

    United Airlines, at $696, was found to be the cheapest airline from Seattle to Warsaw.Alternate airlines to your destination round-trip include Air Canada and British Airways. Users have found that United Airlines is 19% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Warsaw one-way?

    For one-way options, check prices for Scandinavian Airlines. According to our data, you can fly for as low as $389. Users have also found prices from $468 and $471 on British Airways and Lufthansa, respectively.

  • 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 $1,052). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$451Average$1,144FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$547Average$798FlexibilityNo cancel feeOn-time70%
DeltaCheapest$557Average$1,094FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$573Average$995FlexibilityNo cancel feeOn-time69%
FinnairCheapest$581Average$886FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$584Average$687FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$639Average$862FlexibilityNo cancel feeOn-time76%
KLMCheapest$650Average$1,024FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$678Average$937FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.