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Cheap flights from Washington, D.C. to Lille from $605

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Lille departing on 3/29. 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
0 bags

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Find the cheapest flights from Washington, D.C. to Lille

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:30 pm - 8:50 pm
IAD
-
LIL
25h 20m2 stops
Multiple Airlines Logo
10:15 am - 11:45 am
LIL
-
IAD
31h 30m2 stops
$949Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
8:45 pm - 7:05 pm
IAD
-
LIL
16h 20m1 stop
Multiple Airlines Logo
9:25 pm - 4:30 pm
LIL
-
IAD
49h 05m2 stops
$981Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
10:30 pm - 8:50 pm
IAD
-
LIL
16h 20m2 stops
Multiple Airlines Logo
10:15 am - 3:15 pm
LIL
-
IAD
35h 00m3 stops
$1,090Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
10:30 pm - 2:15 pm
IAD
-
LIL
33h 45m3 stops
Multiple Airlines Logo
10:15 am - 3:15 pm
LIL
-
IAD
35h 00m3 stops
$1,172Multiple Airlines
Sun, Feb 1 - Sun, Feb 8

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Lille 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 December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Lille that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Lille

IAD - LIL

IADLIL

Washington, D.C. Dulles Intl

Sun 2/1

1:30 pm-8:50 pm

2 stops25h 20m

Lille Lesquin

Sun 2/8

10:15 am-11:45 am

2 stops31h 30m

$949

Washington, D.C.Lille

IAD - LIL

IADLIL

Washington, D.C. Dulles Intl

Sun 2/1

8:45 pm-7:05 pm

1 stop16h 20m

Lille Lesquin

Sun 2/8

9:25 pm-4:30 pm

2 stops49h 05m

$981

Washington, D.C.Lille

IAD - LIL

IADLIL

Washington, D.C. Dulles Intl

Sun 2/1

10:30 pm-8:50 pm

2 stops16h 20m

Lille Lesquin

Sun 2/8

10:15 am-3:15 pm

3 stops35h 00m

$1,090

Washington, D.C.Lille

IAD - LIL

IADLIL

Washington, D.C. Dulles Intl

Sun 2/1

10:30 pm-2:15 pm

3 stops33h 45m

Lille Lesquin

Sun 2/8

10:15 am-3:15 pm

3 stops35h 00m

$1,172

Washington, D.C.Lille

IAD - LIL

IADLIL

Washington, D.C. Dulles Intl

Sun 3/29

9:40 pm-3:25 pm

2 stops35h 45m

$605

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. to Lille

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Lille according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Lille (WAS to LIL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Lille

Fastest flight time

43h 10m

Direct flights

None
The fastest flight from Washington, D.C. to Lille takes 43h 10m
There are no direct flights from Washington, D.C. to Lille. There are no popular flight routes from Washington, D.C. to Lille.
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  • How far is Washington, D.C. to Lille Lesquin by plane?

    There are 3812.5 mi between Washington, D.C. and Lille Lesquin. Typically, this will take 43h 10m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. to Lille Lesquin Airport?

    Prices for flights from Washington, D.C. to Lille Lesquin Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. to Lille Lesquin Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Lille Lesquin Airport.

  • What documentation or ID do you need to fly to Lille Lesquin Airport?

    The required travel and health documents for your Lille Lesquin 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 Lille Lesquin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Washington, D.C. to Lille?

    Confirm your travel details to search for the latest offers for flights from Washington, D.C. to Lille. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Washington, D.C. to Lille 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.

Traveling to a place near Lille?

Book flights to Lille if you plan to visit one of these locations
Calais
Dunkirk
Maubeuge
Valenciennes
Le Touquet
Roubaix

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Lille?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Lille for you.

Can I find flights from Washington, D.C. to Lille with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Lille on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Lille?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Lille.

I’m not ready to book a flight from Washington, D.C. to Lille right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Lille 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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Cabin classes currently available on flights to Lille

List of cabin classes available on flights landing in Lille. Availability may vary depending on flight origin and airline.
First Class to Lille
Business Class to Lille