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Modlin

$366+ Cheap flights from Seattle (SEA) to Modlin (WMI)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — WMI
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Seattle to Modlin

Cheapest flights from Seattle to Modlin
Explore the most affordable flight options available from Seattle to Modlin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:05 pmSEA - WMI
1 stop17h 05mMultiple Airlines
Fri 1/92:25 pmWMI - SEA
2 stops34h 15mMultiple Airlines
Deal found 12/11$1,391
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:05 pmSEA - WMI
1 stop14h 15mMultiple Airlines
Sat 12/276:45 amWMI - SEA
2 stops21h 31mMultiple Airlines
Deal found 12/10$1,945
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/219:35 pmSEA - WMI
2 stops36h 45mMultiple Airlines
Mon 12/296:40 amWMI - SEA
1 stop20h 40mMultiple Airlines
Deal found 12/10$4,087
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:05 pmSEA - WMI
1 stop14h 15mMultiple Airlines
Mon 12/296:40 amWMI - SEA
1 stop20h 40mMultiple Airlines
Deal found 12/10$4,221

Find flight deals from Seattle to Modlin

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Modlin (WMI). 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 December 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$795
(Kiwi.com)

One-way from

$366
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$885
Provider with most accurate pricing for Seattle/Tacoma Intl-Warsaw Modlin flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Warsaw Modlin flights.
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From Seattle/Tacoma Intl to Warsaw Modlin
Search Deals
One-way flight from Seattle/Tacoma Intl to Warsaw Modlin
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($258 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Modlin 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 December 12, 2025.
Use the filters below to find and compare flights from Seattle to Warsaw Modlin Airport that are best for you.

Fly from

Seattle

Fly to

Modlin

Route

Depart

Return

Price

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Mon 3/23

9:05 pm-9:40 pm

1 stop16h 35m

Warsaw Modlin

Mon 3/30

10:20 am-4:59 pm

1 stop15h 39m

$795

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Mon 1/12

4:45 pm-7:05 pm

1 stop17h 20m

Warsaw Modlin

Sun 1/25

1:00 pm-7:52 pm

2 stops39h 52m

$908

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Mon 3/23

9:05 pm-9:40 pm

1 stop16h 35m

Warsaw Modlin

Sun 3/29

1:00 pm-8:40 pm

2 stops16h 40m

$1,021

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sat 4/18

6:45 pm-1:15 am

1 stop21h 30m

Warsaw Modlin

Mon 4/20

10:50 pm-5:55 pm

2 stops28h 05m

$1,049

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sun 3/22

6:05 am-12:35 pm

2 stops22h 30m

Warsaw Modlin

Mon 3/30

10:20 am-4:59 pm

1 stop15h 39m

$1,181

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sat 3/21

10:30 am-5:55 pm

2 stops23h 25m

Warsaw Modlin

Mon 3/30

10:20 am-4:59 pm

1 stop15h 39m

$1,190

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Wed 12/31

8:05 pm-10:10 pm

1 stop17h 05m

Warsaw Modlin

Fri 1/9

2:25 pm-3:40 pm

2 stops34h 15m

$1,391

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Wed 5/20

6:50 pm-10:20 pm

2 stops18h 30m

Warsaw Modlin

Thu 6/25

11:05 am-4:59 pm

1 stop14h 54m

$1,465

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Mon 12/22

8:05 pm-7:20 pm

1 stop14h 15m

Warsaw Modlin

Sat 12/27

6:45 am-7:16 pm

2 stops21h 31m

$1,945

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Mon 12/22

8:05 pm-7:20 pm

1 stop14h 15m

Warsaw Modlin

Mon 12/29

6:40 am-6:20 pm

1 stop20h 40m

$4,221

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 13 results
1
2
  • Most accurate provider: When it comes to deals on Seattle-Warsaw Modlin Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Warsaw Modlin Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Warsaw Modlin Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Warsaw Modlin 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-Warsaw Modlin 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 Modlin

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

Related info for your journey

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Modlin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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