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$810+ Cheap flights from Modlin (WMI) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
WMI — SEA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Modlin to Seattle

Best flights from Modlin to Seattle
Discover carefully curated flight deals from Modlin to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

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 4/2710:50 pmWMI - SEA
2 stops26h 10mMultiple Airlines
Tue 7/285:40 pmSEA - WMI
1 stop22h 05mMultiple Airlines
Deal found 12/10$810
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.
Sat 5/27:05 pmWMI - SEA
2 stops34h 23mMultiple Airlines
Tue 7/285:40 pmSEA - WMI
1 stop22h 05mMultiple Airlines
Deal found 12/10$822
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.
Wed 5/65:55 amWMI - SEA
2 stops23h 33mMultiple Airlines
Fri 5/86:45 pmSEA - WMI
1 stop21h 30mMultiple Airlines
Deal found 12/10$880
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.
Thu 4/3010:45 pmWMI - SEA
2 stops28h 10mMultiple Airlines
Tue 7/285:40 pmSEA - WMI
1 stop22h 05mMultiple Airlines
Deal found 12/10$958
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.
Tue 4/2810:35 pmWMI - SEA
2 stops26h 05mMultiple Airlines
Tue 7/285:40 pmSEA - WMI
1 stop22h 05mMultiple Airlines
Deal found 12/10$965
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 5/47:30 amWMI - SEA
2 stops17h 10mMultiple Airlines
Tue 5/56:45 pmSEA - WMI
1 stop19h 45mMultiple Airlines
Deal found 12/10$986
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 4/261:00 pmWMI - SEA
2 stops16h 40mMultiple Airlines
Tue 7/285:40 pmSEA - WMI
1 stop22h 05mMultiple Airlines
Deal found 12/10$1,004
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 5/47:30 amWMI - SEA
2 stops17h 10mMultiple Airlines
Tue 7/285:40 pmSEA - WMI
1 stop22h 05mMultiple Airlines
Deal found 12/10$1,012

Find flight deals from Modlin to Seattle

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

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$810
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$1,016
Provider with most accurate pricing for Warsaw Modlin-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Warsaw Modlin-Seattle/Tacoma Intl flights.
Search Deals
From Warsaw Modlin to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 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 Modlin to Seattle 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 Warsaw Modlin Airport to Seattle that are best for you.

Fly from

Modlin

Fly to

Seattle

Route

Depart

Return

Price

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Mon 4/27

10:50 pm-4:00 pm

2 stops26h 10m

Seattle/Tacoma Intl

Tue 7/28

5:40 pm-12:45 am

1 stop22h 05m

$810

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Sat 5/2

7:05 pm-8:28 pm

2 stops34h 23m

Seattle/Tacoma Intl

Tue 7/28

5:40 pm-12:45 am

1 stop22h 05m

$822

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Wed 5/6

5:55 am-8:28 pm

2 stops23h 33m

Seattle/Tacoma Intl

Fri 5/8

6:45 pm-1:15 am

1 stop21h 30m

$880

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Thu 4/30

10:45 pm-5:55 pm

2 stops28h 10m

Seattle/Tacoma Intl

Tue 7/28

5:40 pm-12:45 am

1 stop22h 05m

$958

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Tue 4/28

10:35 pm-3:40 pm

2 stops26h 05m

Seattle/Tacoma Intl

Tue 7/28

5:40 pm-12:45 am

1 stop22h 05m

$965

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Mon 5/4

7:30 am-3:40 pm

2 stops17h 10m

Seattle/Tacoma Intl

Tue 5/5

6:45 pm-11:30 pm

1 stop19h 45m

$986

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Sun 4/26

1:00 pm-8:40 pm

2 stops16h 40m

Seattle/Tacoma Intl

Tue 7/28

5:40 pm-12:45 am

1 stop22h 05m

$1,004

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Mon 5/4

7:30 am-3:40 pm

2 stops17h 10m

Seattle/Tacoma Intl

Tue 7/28

5:40 pm-12:45 am

1 stop22h 05m

$1,012

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Sun 1/4

5:50 pm-10:40 am

3 stops49h 50m

$1,039

WarsawSeattle

WMI - SEA

WMISEA

Warsaw Modlin

Sat 1/3

7:25 pm-8:45 am

3 stops46h 20m

$1,665

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 11 results
1
2
  • Most accurate provider: When it comes to deals on Warsaw Modlin Airport-Seattle flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Warsaw Modlin Airport-Seattle flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Warsaw Modlin Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Warsaw Modlin Airport-Seattle flights, Cheapflights users trust AranGrant the most. AranGrant 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 Warsaw Modlin Airport-Seattle 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 Modlin to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Modlin 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 Modlin to Seattle. 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 into for flights to Seattle from Warsaw Modlin?

    If you book a flight to Seattle from Warsaw Modlin, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Warsaw Modlin to Seattle/Tacoma Intl per day from 0 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Modlin to Seattle 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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