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Cheap flights from Seattle to Warsaw from $470

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Warsaw departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Warsaw (SEA-WMI)

Cheap round-trip flights

Logo
7:35 pm - 9:40 pmSEA-WMI
17h 05m1 stop
Logo
11:20 am - 5:50 pmWMI-SEA
15h 30m1 stop
$858
Find Deal
Sun, Sep 28 - Wed, Oct 8
Logo
7:35 pm - 1:05 amSEA-WMI
20h 30m1 stop
Logo
11:20 am - 5:50 pmWMI-SEA
15h 30m1 stop
$884
Find Deal
Wed, Aug 20 - Wed, Sep 3
Logo
7:35 pm - 9:40 pmSEA-WMI
17h 05m1 stop
Logo
11:05 am - 5:50 pmWMI-SEA
15h 45m1 stop
$940
Find Deal
Sun, Sep 28 - Tue, Oct 7
Logo
7:35 pm - 9:40 pmSEA-WMI
17h 05m1 stop
Logo
11:05 am - 5:50 pmWMI-SEA
15h 45m1 stop
$987
Find Deal
Sun, Aug 24 - Tue, Sep 9
Logo
7:35 pm - 9:40 pmSEA-WMI
17h 05m1 stop
Logo
6:05 am - 5:50 pmWMI-SEA
20h 45m1 stop
$1,008
Find Deal
Sun, Aug 24 - Fri, Sep 5
Logo
1:30 pm - 3:20 pmSEA-WMI
16h 50m1 stop
Logo
12:45 pm - 10:35 amWMI-SEA
30h 50m2 stops
$1,068
Find Deal
Thu, Sep 4 - Mon, Sep 8
Logo
8:20 pm - 12:15 pmSEA-WMI
30h 55m2 stops
Logo
11:20 am - 5:50 pmWMI-SEA
15h 30m1 stop
$1,127
Find Deal
Wed, Aug 20 - Wed, Sep 3
Logo
6:41 am - 9:40 pmSEA-WMI
29h 59m2 stops
Logo
9:05 am - 1:50 pmWMI-SEA
13h 45m1 stop
$1,186
Find Deal
Sun, Aug 31 - Sun, Sep 7
Logo
6:41 am - 12:10 pmSEA-WMI
20h 29m2 stops
Logo
9:05 am - 2:00 pmWMI-SEA
13h 55m1 stop
$1,246
Find Deal
Thu, Sep 4 - Sun, Oct 5
Logo
7:00 pm - 9:25 pmSEA-WMI
17h 25m2 stops
Logo
11:05 am - 5:50 pmWMI-SEA
15h 45m1 stop
$1,306
Find Deal
Tue, Sep 2 - Tue, Sep 9

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Warsaw Modlin Airport 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, momondo users made 832,500 searches. Data last updated August 5, 2025.
Use the filters below to find and compare flights from Seattle to Warsaw Modlin Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sun 9/28

7:35 pm-9:40 pm

1 stop17h 05m

Warsaw Modlin

Wed 10/8

11:20 am-5:50 pm

1 stop15h 30m

$858

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Wed 8/20

7:35 pm-1:05 am

1 stop20h 30m

Warsaw Modlin

Wed 9/3

11:20 am-5:50 pm

1 stop15h 30m

$884

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sun 9/28

7:35 pm-9:40 pm

1 stop17h 05m

Warsaw Modlin

Tue 10/7

11:05 am-5:50 pm

1 stop15h 45m

$940

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sun 8/24

7:35 pm-9:40 pm

1 stop17h 05m

Warsaw Modlin

Tue 9/9

11:05 am-5:50 pm

1 stop15h 45m

$987

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sun 8/24

7:35 pm-9:40 pm

1 stop17h 05m

Warsaw Modlin

Fri 9/5

6:05 am-5:50 pm

1 stop20h 45m

$1,008

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Thu 9/4

1:30 pm-3:20 pm

1 stop16h 50m

Warsaw Modlin

Mon 9/8

12:45 pm-10:35 am

2 stops30h 50m

$1,068

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Wed 8/20

8:20 pm-12:15 pm

2 stops30h 55m

Warsaw Modlin

Wed 9/3

11:20 am-5:50 pm

1 stop15h 30m

$1,127

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Sun 8/31

6:41 am-9:40 pm

2 stops29h 59m

Warsaw Modlin

Sun 9/7

9:05 am-1:50 pm

1 stop13h 45m

$1,186

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Thu 9/4

6:41 am-12:10 pm

2 stops20h 29m

Warsaw Modlin

Sun 10/5

9:05 am-2:00 pm

1 stop13h 55m

$1,246

SeattleWarsaw

SEA - WMI

SEAWMI

Seattle/Tacoma Intl

Tue 9/2

7:00 pm-9:25 pm

2 stops17h 25m

Warsaw Modlin

Tue 9/9

11:05 am-5:50 pm

1 stop15h 45m

$1,306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from Seattle to Warsaw Modlin Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Warsaw Modlin Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Warsaw Modlin Airport (SEA to WMI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Warsaw Modlin Airport

Best Price Found

$470

Fastest flight time

16h 50m

Direct flights

None
The best one-way flight to Warsaw Modlin Airport from Seattle in the past 72 hours is $470. The best round-trip flight deal from Seattle to Warsaw Modlin Airport found on momondo in the last 72 hours is $858.
The fastest flight from Seattle to Warsaw Modlin Airport takes 16h 50m
There are no direct flights from Seattle to Warsaw Modlin Airport. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Warsaw Modlin Airport.
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  • How far is Seattle/Tacoma Intl to Warsaw Modlin by plane?

    Warsaw Modlin is 5183.8 mi away from Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 16h 50m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Warsaw Modlin Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Warsaw Modlin Airport were last updated today.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Warsaw Modlin Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Warsaw Modlin Airport.

  • What documentation or ID do you need to fly to Warsaw Modlin Airport?

    The travel and health documents you'll need for your trip to Warsaw Modlin Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Warsaw Modlin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Seattle to Warsaw Modlin Airport?

    Search flight deals from Seattle to Warsaw Modlin Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Seattle to Warsaw Modlin Airport with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Warsaw?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Warsaw. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Warsaw with flexible booking policies on momondo?

All flight searches from Seattle to Warsaw on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Warsaw?

Once you have performed a search for Seattle to Warsaw flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Warsaw right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Warsaw now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Warsaw and let you know when they change.

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