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Cheap flights from Boston to Warsaw from $304

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Warsaw departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Boston to Warsaw

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:15 pm - 11:30 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
20h 15m1 stop Dublin
Multiple Airlines Logo
6:15 am - 9:05 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
20h 50m1 stop Barcelona-El Prat
$660Multiple Airlines
Tue, Sep 15 - Wed, Oct 21
Multiple Airlines Logo
9:15 pm - 11:30 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
20h 15m1 stop Dublin
Multiple Airlines Logo
10:55 pm - 9:05 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
28h 10m2 stops Milan Malpensa Barcelona-El Prat
$667Multiple Airlines
Tue, Oct 6 - Tue, Oct 20
Multiple Airlines Logo
11:35 pm - 9:00 amBOS  Boston Logan Intl-WMI Warsaw Modlin
27h 25m1 stop Barcelona-El Prat
Multiple Airlines Logo
7:00 pm - 9:05 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
32h 05m2 stops Bergamo Orio Al Serio Barcelona-El Prat
$673Multiple Airlines
Sun, Sep 27 - Wed, Oct 14
Multiple Airlines Logo
8:50 pm - 8:15 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
17h 25m2 stops Reykjavik Keflavik Intl London Heathrow
Multiple Airlines Logo
6:15 am - 9:05 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
20h 50m1 stop Barcelona-El Prat
$730Multiple Airlines
Tue, Sep 15 - Wed, Sep 30
Multiple Airlines Logo
9:15 pm - 11:30 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
20h 15m1 stop Dublin
Multiple Airlines Logo
10:45 am - 9:45 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
41h 00m2 stops Malaga Barcelona-El Prat
$731Multiple Airlines
Sat, Oct 3 - Sat, Oct 17
Multiple Airlines Logo
6:30 pm - 12:30 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
12h 00m1 stop Shannon
Multiple Airlines Logo
10:20 pm - 9:05 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
52h 45m2 stops Bergamo Orio Al Serio Barcelona-El Prat
$735Multiple Airlines
Thu, Oct 1 - Mon, Oct 19
Multiple Airlines Logo
6:30 pm - 12:30 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
12h 00m1 stop Shannon
Multiple Airlines Logo
10:20 pm - 9:05 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
52h 45m2 stops Bergamo Orio Al Serio Barcelona-El Prat
$741Multiple Airlines
Thu, Oct 1 - Mon, Oct 19
Multiple Airlines Logo
10:55 pm - 1:05 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
32h 10m1 stop Barcelona-El Prat
Multiple Airlines Logo
9:15 am - 9:05 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
17h 50m2 stops Milan Malpensa Barcelona-El Prat
$771Multiple Airlines
Wed, Aug 19 - Wed, Sep 2
Multiple Airlines Logo
5:50 pm - 1:00 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
13h 10m1 stop Dublin
Multiple Airlines Logo
2:10 pm - 6:25 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
34h 15m2 stops Paris Beauvais-Tille Madrid Barajas
$775Multiple Airlines
Fri, Nov 6 - Fri, Nov 20
Multiple Airlines Logo
9:20 pm - 9:05 pmBOS  Boston Logan Intl-WMI Warsaw Modlin
17h 45m1 stop Dublin
Multiple Airlines Logo
6:00 am - 6:25 pmWMI  Warsaw Modlin-BOS Boston Logan Intl
18h 25m2 stops Paris Beauvais-Tille Madrid Barajas
$776Multiple Airlines
Mon, Nov 9 - Mon, Nov 23

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Customize your flight search to find flights from Boston 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 8, 2026.
Use the filters below to find and compare flights from Boston to Warsaw Modlin Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Tue 9/15

9:15 pm-11:30 pm

1 stop20h 15m

Warsaw Modlin

Wed 10/21

6:15 am-9:05 pm

1 stop20h 50m

$660

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Tue 10/6

9:15 pm-11:30 pm

1 stop20h 15m

Warsaw Modlin

Tue 10/20

10:55 pm-9:05 pm

2 stops28h 10m

$667

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Sun 9/27

11:35 pm-9:00 am

1 stop27h 25m

Warsaw Modlin

Wed 10/14

7:00 pm-9:05 pm

2 stops32h 05m

$673

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Tue 9/15

8:50 pm-8:15 pm

2 stops17h 25m

Warsaw Modlin

Wed 9/30

6:15 am-9:05 pm

1 stop20h 50m

$730

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Sat 10/3

9:15 pm-11:30 pm

1 stop20h 15m

Warsaw Modlin

Sat 10/17

10:45 am-9:45 pm

2 stops41h 00m

$731

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Thu 10/1

6:30 pm-12:30 pm

1 stop12h 00m

Warsaw Modlin

Mon 10/19

10:20 pm-9:05 pm

2 stops52h 45m

$735

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Thu 10/1

6:30 pm-12:30 pm

1 stop12h 00m

Warsaw Modlin

Mon 10/19

10:20 pm-9:05 pm

2 stops52h 45m

$741

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Wed 8/19

10:55 pm-1:05 pm

1 stop32h 10m

Warsaw Modlin

Wed 9/2

9:15 am-9:05 pm

2 stops17h 50m

$771

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Fri 11/6

5:50 pm-1:00 pm

1 stop13h 10m

Warsaw Modlin

Fri 11/20

2:10 pm-6:25 pm

2 stops34h 15m

$775
Quickest round-trip

BostonWarsaw

BOS Boston Logan Intl - WMI Warsaw Modlin

BOSWMI

Boston Logan Intl

Mon 11/9

9:20 pm-9:05 pm

1 stop17h 45m

Warsaw Modlin

Mon 11/23

6:00 am-6:25 pm

2 stops18h 25m

$776

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 Boston to Warsaw Modlin Airport

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

Cheap Boston to Warsaw Modlin Airport (BOS to WMI) flight deals and tips

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

Fastest flight time

12h 00m

Direct flights

None
The fastest flight from Boston to Warsaw Modlin Airport takes 12h 00m
There are no direct flights from Boston to Warsaw Modlin Airport. There are no popular flight routes from Boston to Warsaw Modlin Airport.
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Frequently asked questions about flying from Boston to Warsaw Modlin Airport

  • How far is Boston Logan Intl to Warsaw Modlin by plane?

    Warsaw Modlin is 4047.2 mi away from Boston Logan Intl. Flights usually cover this in 12h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Warsaw Modlin Airport?

    Prices for flights from Boston Logan Intl Airport to Warsaw Modlin Airport refresh daily.

  • How old do you have to be to fly from Boston Logan 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 Boston Logan Intl Airport to Warsaw Modlin Airport.

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

    The required travel and health documents for your Warsaw Modlin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Warsaw Modlin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Boston to Warsaw Modlin Airport

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

    Search flight deals from Boston 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 Boston to Warsaw Modlin Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Warsaw. momondo saves you time and could save you money on your trip.

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

Flights from Boston to Warsaw with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Warsaw from Boston.

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

Of course. momondo tracks the price of Boston to Warsaw flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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