Trip.com
>
Flights
>
Flights to Belgium
>
Flights to Liege
>
Flights from Boston to Liege

Cheap flight deals from Boston to Liege

Find the cheapest flights from Boston to Liege within the next 3 months. Book one way flights from KWD 208 or round trip flights from KWD 274.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Boston to Liege

The distance between Boston and Liege is about 5,667.74 km. The most popular month to Liege is April. The off-season for travel is April.

Cheapest one-way flight price KWD 208
Cheapest return ticket price KWD 274
Off-season for travel April
Peak season for travel April
Flight distance 5,667.74 km

When is the cheapest time to fly from Boston to Liege?

The cheapest time for Boston to Liege flights: Aug 24 to Aug 31 — one way flight prices from KWD 208.

Cheapest flights
From price
Search
  • 6 13
  • 13 20
  • 20 27

  • Aug

    27 3
  • 3 10
  • 10 17
  • 17 24
  • 24 31

  • Sep

    31 7
  • 7 14
  • 14 21
  • 21 28
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Boston (BOS) to Liege (LGG) the cheapest?

    Airlines adjust prices for flights from Boston to Liege based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Boston (BOS) to Liege (LGG) cost?

    According to Trip.com's data, the lowest price is around KWD 494.

  • How many airports are there in Liege (LGG)?

    There are 1 airport(s) near Liege (LGG): Liege Airport.

How to find a cheap flight from Boston to Liege

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to Liege. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Boston to Liege ticket.
Tap "Date" on flight search bar to get the calender for Boston to Liege airfare over next 6 months in 2025.
2
Compare cheap Boston to Liege flight deals from over hundreds of airlines.
Compare prices from over 500 airlines with our powerful search and find the cheapest flight tickets from Boston to Liege.
3
Set up a Price Alert
By setting up a Price Alert for your Boston to Liege route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Boston to Liege flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Boston to Liege to get exclusive deals for you.

More Travel Options