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$333+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — WAW
ag. 5 — ag. 121
dt. 8/5
dt. 8/12
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 85 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 juliol 31, 2025.

Round-trip from

$506
(Scandinavian Airlines)

One-way from

$333
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,010
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. 20% potential increase in price ($213 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in July 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 juliol 31, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 7/31. 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.
dc. 9/34:00 pmSEA - WAW
1 stop13h 20mScandinavian Airlines
dj. 9/113:00 pmWAW - SEA
1 stop32h 00mScandinavian Airlines
Deal found 7/31$506
This Scandinavian Airlines deal was found by Cheapflights users on 7/29. 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.
dv. 8/224:00 pmSEA - WAW
1 stop13h 20mMultiple Airlines
dv. 9/58:05 amWAW - SEA
2 stops14h 45mMultiple Airlines
Deal found 7/29$518
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dl. 12/86:50 pmSEA - WAW
1 stop14h 55mBritish Airways
dj. 1/297:00 amWAW - SEA
1 stop18h 55mBritish Airways
Deal found 7/29$596
This SWISS deal was found by Cheapflights users on 7/30. 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.
dc. 8/201:45 pmSEA - WAW
2 stops15h 25mSWISS
dl. 8/257:40 pmWAW - SEA
2 stops31h 56mSWISS
Deal found 7/30$609
This Lufthansa deal was found by Cheapflights users on 7/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 8/206:50 pmSEA - WAW
1 stop12h 25mLufthansa
dt. 8/266:35 amWAW - SEA
2 stops24h 45mLufthansa
Deal found 7/30$614
This United Airlines deal was found by Cheapflights users on 7/30. 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.
dc. 8/207:20 amSEA - WAW
2 stops25h 55mUnited Airlines
dt. 8/266:35 amWAW - SEA
2 stops23h 42mUnited Airlines
Deal found 7/30$618
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
dc. 9/247:35 pmSEA - WMI
1 stop20h 30mMultiple Airlines
dc. 10/811:20 amWMI - SEA
1 stop15h 30mMultiple Airlines
Deal found 7/29$851

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 juliol 31, 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

dc. 9/3

4:00 pm-2:20 pm

1 stop13h 20m

Warsaw Frederic Chopin

dj. 9/11

3:00 pm-2:00 pm

1 stop32h 00m

$506

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

dv. 8/22

4:00 pm-2:20 pm

1 stop13h 20m

Warsaw Frederic Chopin

dv. 9/5

8:05 am-1:50 pm

2 stops14h 45m

$518

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

dl. 12/8

6:50 pm-6:45 pm

1 stop14h 55m

Warsaw Frederic Chopin

dj. 1/29

7:00 am-4:55 pm

1 stop18h 55m

$596

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

dc. 8/20

1:45 pm-2:10 pm

2 stops15h 25m

Warsaw Frederic Chopin

dl. 8/25

7:40 pm-6:36 pm

2 stops31h 56m

$609

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

dc. 8/20

6:50 pm-4:15 pm

1 stop12h 25m

Warsaw Frederic Chopin

dt. 8/26

6:35 am-10:20 pm

2 stops24h 45m

$614

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

dc. 8/20

7:20 am-6:15 pm

2 stops25h 55m

Warsaw Frederic Chopin

dt. 8/26

6:35 am-9:17 pm

2 stops23h 42m

$618

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

dc. 9/24

7:35 pm-1:05 am

1 stop20h 30m

Warsaw Modlin

dc. 10/8

11:20 am-5:50 pm

1 stop15h 30m

$851

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

dv. 10/17

9:30 pm-6:30 pm

2 stops36h 00m

$333

SeattleWarsaw

SEA - WAW

SEAWAW

Seattle/Tacoma Intl

dv. 10/17

4:20 pm-8:50 pm

1 stop19h 30m

$372

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

dc. 8/27

7:00 pm-12:15 pm

2 stops32h 15m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 18 results
1
2

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 July 25, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Warsaw, you should look to book at least 85 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 $1,021). 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 juliol 31, 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.

How much does it cost to fly round-trip from Seattle to Warsaw?

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 juliol 31, 2025.
See what other customers who have flown with LOT, Air France, and SWISS 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.
LOT
7.6
Good
1,105 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Comfort

7.5

Food

7.2

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
LOT
7.6
Good
1,105 reviews
LOT
7.6
Good
1,105 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Comfort

7.5

Food

7.2

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Air France
7.5
Good
1,465 reviews
LOT
7.6
Good
1,105 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Comfort

7.5

Food

7.2

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
SWISS
7.5
Good
1,686 reviews
LOT
7.6
Good
1,105 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Comfort

7.5

Food

7.2

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
United Airlines
7.4
Good
8,902 reviews
LOT
7.6
Good
1,105 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Comfort

7.5

Food

7.2

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Scandinavian Airlines
7.4
Good
1,457 reviews
LOT
7.6
Good
1,105 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Comfort

7.5

Food

7.2

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.

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?

    Scandinavian Airlines, at $506, was found to be the cheapest airline from Seattle to Warsaw.Alternate airlines to your destination round-trip include British Airways and SWISS. Users have found that Scandinavian Airlines is 39% 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 $372. Users have also found prices from $475 and $483 on Lufthansa and Air France, 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 $1,021). 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

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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 juliol 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$451Average$758FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$547Average$807FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$571Average$983FlexibilityNo cancel feeOn-time69%
FinnairCheapest$581Average$886FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$584Average$687FlexibilityNo cancel feeOn-time71%
KLMCheapest$644Average$877FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$646Average$937FlexibilityNo cancel feeOn-time76%
DeltaCheapest$656Average$1,082FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$678Average$778FlexibilityNo cancel feeOn-time77%

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