$303 Find Cheap Flights from Boston to Luxembourg - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Luxembourg departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Luxembourg

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Boston to Luxembourg Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Luxembourg that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Luxembourg

Wed, Nov 4 - Wed, Nov 18
TAP AIR PORTUGAL Logo
6:00 pm - 4:50 pm
BOS
-
LUX
16h 50m
1 stop
TAP AIR PORTUGAL Logo
12:05 pm - 2:40 pm
LUX
-
BOS
32h 35m
1 stop
$578TAP AIR PORTUGAL
Tue, Nov 3 - Thu, Nov 19
TAP AIR PORTUGAL Logo
6:00 pm - 11:15 am
BOS
-
LUX
11h 15m
1 stop
TAP AIR PORTUGAL Logo
5:40 pm - 2:40 pm
LUX
-
BOS
27h 00m
1 stop
$582TAP AIR PORTUGAL
Tue, Nov 3 - Wed, Nov 18
TAP AIR PORTUGAL Logo
6:00 pm - 11:15 am
BOS
-
LUX
11h 15m
1 stop
TAP AIR PORTUGAL Logo
12:05 pm - 2:40 pm
LUX
-
BOS
32h 35m
1 stop
$589TAP AIR PORTUGAL
Thu, Nov 5 - Tue, Nov 17
TAP AIR PORTUGAL Logo
6:00 pm - 4:50 pm
BOS
-
LUX
16h 50m
1 stop
TAP AIR PORTUGAL Logo
5:40 pm - 2:40 pm
LUX
-
BOS
27h 00m
1 stop
$602TAP AIR PORTUGAL
Mon, Oct 12 - Thu, Oct 22
TAP AIR PORTUGAL Logo
11:15 pm - 11:30 am
BOS
-
LUX
30h 15m
2 stops
TAP AIR PORTUGAL Logo
12:20 pm - 8:20 pm
LUX
-
BOS
14h 00m
1 stop
$618TAP AIR PORTUGAL
Sun, Nov 1 - Thu, Nov 19
TAP AIR PORTUGAL Logo
6:00 pm - 11:15 am
BOS
-
LUX
11h 15m
1 stop
TAP AIR PORTUGAL Logo
5:40 pm - 2:40 pm
LUX
-
BOS
27h 00m
1 stop
$648TAP AIR PORTUGAL
Sun, Nov 1 - Mon, Nov 16
TAP AIR PORTUGAL Logo
6:00 pm - 11:15 am
BOS
-
LUX
11h 15m
1 stop
TAP AIR PORTUGAL Logo
12:05 pm - 2:40 pm
LUX
-
BOS
32h 35m
1 stop
$655TAP AIR PORTUGAL
Wed, Nov 4 - Wed, Nov 18
American Airlines Logo
7:15 pm - 9:10 pm
BOS
-
LUX
19h 55m
1 stop
American Airlines Logo
11:00 am - 4:00 pm
LUX
-
BOS
11h 00m
1 stop
$660American Airlines
Mon, Aug 10 - Wed, Aug 19
British Airways Logo
9:50 pm - 10:40 am
BOS
-
LUX
30h 50m
1 stop
British Airways Logo
9:35 pm - 10:35 pm
LUX
-
BOS
31h 00m
1 stop
$662British Airways
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
11:35 am - 10:45 am
BOS
-
LUX
17h 10m
2 stops
American Airlines Logo
9:35 pm - 12:40 pm
LUX
-
BOS
21h 05m
1 stop
$664American Airlines
Booking Insights

KAYAK's insights & trends for Boston to Luxembourg flights

Get data-powered insights and trends into flights from Boston to Luxembourg to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boston to Luxembourg?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Luxembourg, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Luxembourg is May, when tickets cost $326 (return) on average. On the other hand, the most expensive months are February and June, when the average cost of round-trip tickets is $496 and $493 respectively.

How far in advance should I book a flight from Boston to Luxembourg?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Luxembourg, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Luxembourg, you should book around 3 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$303
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Boston to Luxembourg

FAQs - booking Luxembourg flights

  • How does KAYAK find such low prices on flights from Boston to Luxembourg?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Luxembourg.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Luxembourg?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Luxembourg is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Luxembourg?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boston to Luxembourg with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Luxembourg?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to Luxembourg up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boston to Luxembourg

 
Need help choosing which airline to fly with from Boston to Luxembourg? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
SWISSOverall score based on 1971 reviews
6.8Entertainment
7.4Comfort
7.1Food
7.7Boarding
8.3Crew
Airline reviews

3hr delay and then missed connecting flight with another 6hr wait at the airport before getting a continuation to my trip, worst trip ever in my 50+years of flight travel

4.0 OkayAnonymous, May 2026
TPA - ZRH
Read more SWISS reviews

3hr delay and then missed connecting flight with another 6hr wait at the airport before getting a continuation to my trip, worst trip ever in my 50+years of flight travel

Without a doubt, my “customer service” experience with SWISS was the worst of my life. Multiple disconnections in conversations, very cold and indifferent staff, failure to follow up with promised status updates — simply put, T. H. E. W. O. R. S. T. A full week later, and I am STILL waiting to hear from them. Never again for me with SWISS. Disgraceful.

The flight and all amenities were good to excellent. SWISS was awful to deal with. Every step of the way they nickel and dime you. Chose your seats? $14. Change your seats… No accounting for the prior payment. You get billed again. 17 pound restriction on overhead luggage, nonsense. It’s a weight in the plane whether it’s in the overhead or in check baggage. They just milk you for every cent they can and I resent it. The flight was excellent.

plenty of legspace, snacks, no pull face from flight attendants when asking for a wine. Also fast transfer ability at ZRH.

Entertainment sounds were not good. Otherwise everything else was good.

The noise in the plane made the highest level of sound in the entertainment system ineffeective. The leg room was better than most flights bu the seats are not made for comfort. Food was ok but nothing to look forward too.

The flight itself was fine, but due to a snow delay my connection to Lisbon was delayed by six hours. Despite this, Swiss Air still managed to lose my luggage. Not acceptable. Someone else on the flight also lost their luggage.

Bad experience overall. Crew did not provide food for our 2 year old (even though we specifically bought a child infant seat for her and literally bought another full price flight), which was unacceptable. And we had to pay $310 each way to carry our ski equipment even though they advertise it as something that is free. Tickets were purchased the same way as usual, but they told us we had Economy Light tickets (I never elected to have such seats). Just plain manipulation and false advertisment. Very disappointed overall about this airline.

Flight from Warsaw to Zurich was just OK but the food selection for purchase was very limited. They were out of sandwiches from the very beginning

The trip was great until my luggage was lost on transfer from United to Swiss. It took Swiss 3 days to get my luggage to me though it was located almost immediately.

I love Air France. This was another great experience despite a slight delay in the departure. The time was made up on flight. I would take AirFrance again when traveling to the far East. Merci beaucoup.

Everything is good except the seats are tightened no rooms for the legs,

The plane's pilots, including the captain himself, thanked me for the flight. I know it's just marketing, but it was really nice to see these people. It's a great idea. Airplane food is never "good," but the entire crew and flight organization were top-notch. I really liked Delta, and I think I've traveled all over the world, and that was something new for me. Maybe even the old planes, the B767, but next time I have a choice, Delta will be my first choice. Thank you, a satisfied passenger :)

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

Not consistent with the food quality (I mean taste not freshness)

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

We sat in our seats on the tarmac for almost 3 hours due to storms. They would not give us water or a snack. We were to depart at 7.30 pm and it was about 10.30 when we took off. No dinner until much after that. Beef type noodle dish was terrible with about a teaspoon of beef in it. The breakfast sweet waffle with egg and sausage inside was horrible. An English muffin sandwich would have been much better. Food was the worst in all of our years of traveling the world.

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Everything you need to know for your flight from Boston to Luxembourg

Information on your arrival and departure airports