BOS - LUX

$273 Find Cheap Flights from Boston to Luxembourg

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 5/4. 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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Luxembourg, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Luxembourg, as well as popular online travel agencies
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$354
Overall average: $377
Multiple Airlines
Tue 3/31Tue 4/14
BOS - LUX • 1 stop
Cheapest one-way
$273
Typical prices: $511-$2,559
Multiple Airlines
Mon 5/4
BOS - LUX • 1 stop
Top airlines
SWISS
Cheapest • from $356 (round-trip)
SWISS
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 59% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 35% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Luxembourg!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Luxembourg (BOS-LUX)

 
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

Tue, Mar 31 - Tue, Apr 14
Multiple Airlines Logo
5:20 pm - 9:30 am
BOS
-
LUX
10h 10m
1 stop
Multiple Airlines Logo
8:30 am - 11:59 pm
LUX
-
BOS
21h 29m
2 stops
$354Multiple Airlines
Tue, Mar 31 - Tue, Apr 14
SWISS Logo
9:40 pm - 1:35 pm
BOS
-
LUX
9h 55m
1 stop
SWISS Logo
2:55 pm - 7:55 pm
LUX
-
BOS
11h 00m
1 stop
$356SWISS
Tue, Mar 31 - Tue, Apr 14
SWISS Logo
9:40 pm - 1:35 pm
BOS
-
LUX
9h 55m
1 stop
SWISS Logo
2:55 pm - 7:55 pm
LUX
-
BOS
11h 00m
1 stop
$363SWISS
Mon, Mar 30 - Fri, Apr 10
Multiple Airlines Logo
6:40 pm - 9:30 am
BOS
-
LUX
32h 50m
2 stops
Multiple Airlines Logo
10:15 am - 7:55 pm
LUX
-
BOS
15h 40m
1 stop
$372Multiple Airlines
Tue, Mar 31 - Tue, Apr 14
Multiple Airlines Logo
5:30 am - 9:30 am
BOS
-
LUX
22h 00m
2 stops
Multiple Airlines Logo
6:05 am - 2:52 pm
LUX
-
BOS
14h 47m
2 stops
$373Multiple Airlines
Tue, Mar 31 - Tue, Apr 14
Multiple Airlines Logo
5:30 am - 9:30 am
BOS
-
LUX
22h 00m
2 stops
Multiple Airlines Logo
6:05 am - 3:40 pm
LUX
-
BOS
15h 35m
1 stop
$375Multiple Airlines
Mon, Mar 30 - Fri, Apr 10
SWISS Logo
5:20 pm - 9:30 am
BOS
-
LUX
10h 10m
1 stop
SWISS Logo
10:15 am - 7:55 pm
LUX
-
BOS
15h 40m
1 stop
$379SWISS
Tue, Mar 10 - Tue, Mar 24
Multiple Airlines Logo
9:40 pm - 4:20 pm
BOS
-
LUX
13h 40m
1 stop
Multiple Airlines Logo
7:05 pm - 9:20 pm
LUX
-
BOS
31h 15m
1 stop
$382Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
8:05 pm - 4:10 pm
BOS
-
LUX
14h 05m
1 stop
Multiple Airlines Logo
10:15 am - 2:52 pm
LUX
-
BOS
34h 37m
2 stops
$383Multiple Airlines
Tue, Mar 31 - Tue, Apr 14
Air Canada Logo
10:40 am - 9:30 am
BOS
-
LUX
16h 50m
2 stops
Air Canada Logo
10:15 am - 5:57 pm
LUX
-
BOS
13h 42m
2 stops
$388Air Canada
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 January, where tickets cost $365 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $942 and $732 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 59% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$273
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Boston to Luxembourg

When to book flights from Boston to Luxembourg

Are your dates flexible? Find out the best times to travel from Boston to Luxembourg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Luxembourg

  • What is the cheapest flight from Boston to Luxembourg?

    In the last 3 days, the lowest price for a flight from Boston to Luxembourg was $273 for a one-way ticket and $354 for a round-trip.

  • Do I need a passport to fly between Boston and Luxembourg?

    Yes

  • Which aircraft models fly most regularly from Boston to Luxembourg?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Luxembourg?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Luxembourg, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Luxembourg, SWISS or Air France?

    The two airlines most popular with KAYAK users for flights from Boston to Luxembourg are SWISS and Air France. With an average price for the route of $494 and an overall rating of 7.6, SWISS is the most popular choice. Air France is also a great choice for the route, with an average price of $689 and an overall rating of 7.4.

  • 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 to Luxembourg from Boston 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 to Luxembourg with an airline and back to Boston with another airline. Booking your flights between Boston and LUX can sometimes prove cheaper using this method.

  • 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 to Luxembourg from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Boston to Luxembourg

 
See real verified KAYAK customer reviews for airlines flying from Boston to Luxembourg. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
7.6
SWISSOverall score based on 1876 reviews
8.3Crew
6.8Entertainment
7.1Food
7.7Boarding
7.4Comfort
Airline reviews

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.

6.0 GoodSonja, Jan 2026
BOS - ZRH
Read more SWISS reviews

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.

Great flight. I didn't watch the entertainment. I used my iPad the whole flight. But, staff was great, smooth flight, comfortable seat (business seat 7A) and food was really good (I'm a vegetarian).

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.

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.

Horrible!! The WiFi was not working, the food was awful

We’ve never been more uncomfortable on a flight than we have on this particular one. The seats in front of us reclined so far back that when the person reclined their seat of broccoli, it almost hit me in the face and left me with literally no room to move that said I had to recline my seed in which made the person behind me upset. It seemed like the seats also would recline without even pressing the button in the armrest and would unrecline as well for that same reason, and it also seemed that some seats reclined more than others. The bottom cushions of the seat were so thin that even after one hour of an 11 hour flight, our tailbones were so sore. It seemed like an overall old airplane. It also didn’t have individual air vents and it was extremely hot the entire flight. Several passengers were commenting on how hot it was. The breakfast was some kind of flavorless triangle, puffy egg, laying in a watery bed of steamed peppers and onions and spinach. It was not appetizing at all. The flight crew was extremely nice so that was a nice thing this flight attendant. They let us try different types of Swiss sodas, which was really nice and the dinner was actually delicious but still overall given the other considerations. It was pretty much a miserable flight without basic seat comfort.

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

I can’t even the whole trip was a catastrophe

Poor. Seats uncomfortable. No leg room. Hot and humid the whole trip. Food and staffs were ok.

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)

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

I don’t like that an equipment change caused my seat to change from 23A to 44A. The boarding was also delayed. The crew were excellent, however and very attentive. The food was not bad.

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.

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.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

I bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

I don't understand the concept of paying to get your personal luggage onboard and then asked to check it in.... either sell the space or don't, its a hassle to carry those all through the airport just to make a check in at the last minute.

The food was great and the service and attitude was amazing!!

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

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

Information on your arrival and departure airports