$300 Find Cheap Flights from Boston to Heidelberg

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 Heidelberg departing on 7/13. 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.
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Cheap Flight Deals from Boston to Heidelberg (BOS-FRA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Heidelberg 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 Heidelberg

Mon, Oct 13 - Mon, Oct 20
TAP AIR PORTUGAL Logo
10:40 pm - 6:50 pmBOS-FRA
14h 10m1 stop
TAP AIR PORTUGAL Logo
6:05 am - 8:05 pmFRA-BOS
20h 00m1 stop
$520TAP AIR PORTUGAL
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Sun, Aug 17 - Tue, Aug 19
United Airlines Logo
7:12 pm - 7:20 amBOS-FRA
30h 08m1 stop
United Airlines Logo
4:00 pm - 2:35 pmFRA-BOS
28h 35m2 stops
$538United Airlines
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Sun, May 18 - Sat, May 24
Condor Logo
4:15 pm - 5:15 amBOS-FRA
7h 00mnonstop
Condor Logo
11:45 am - 2:00 pmFRA-BOS
8h 15mnonstop
$539Condor
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Fri, May 16 - Tue, Jun 3
Condor Logo
4:15 pm - 5:15 amBOS-FRA
7h 00mnonstop
Condor Logo
11:40 am - 1:55 pmFRA-BOS
8h 15mnonstop
$544Condor
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Mon, Oct 6 - Mon, Oct 20
TAP AIR PORTUGAL Logo
10:40 pm - 12:40 pmBOS-FRA
32h 00m1 stop
TAP AIR PORTUGAL Logo
6:05 am - 8:05 pmFRA-BOS
20h 00m1 stop
$547TAP AIR PORTUGAL
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Tue, Jul 8 - Fri, Jul 18
Aer Lingus Logo
5:30 pm - 10:15 amBOS-FRA
10h 45m1 stop
Aer Lingus Logo
10:55 am - 6:45 pmFRA-BOS
13h 50m1 stop
$633Aer Lingus
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Sat, Jul 26 - Sun, Aug 24
Icelandair Logo
12:35 pm - 1:00 pmBOS-FRA
18h 25m1 stop
Icelandair Logo
5:10 pm - 11:35 amFRA-BOS
24h 25m1 stop
$635Icelandair
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Mon, Aug 4 - Mon, Aug 18
Icelandair Logo
11:35 pm - 1:00 pmBOS-FRA
31h 25m1 stop
Icelandair Logo
5:10 pm - 6:50 pmFRA-BOS
31h 40m1 stop
$636Icelandair
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Mon, May 26 - Wed, Jun 4
Aer Lingus Logo
5:30 pm - 10:15 amBOS-FRA
10h 45m1 stop
Aer Lingus Logo
10:55 am - 6:45 pmFRA-BOS
13h 50m1 stop
$638Aer Lingus
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Tue, Oct 7 - Fri, Nov 7
Lufthansa Logo
5:50 pm - 7:10 amBOS-FRA
7h 20mnonstop
Lufthansa Logo
10:55 am - 1:25 pmFRA-BOS
8h 30mnonstop
$767Lufthansa
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Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$300
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Boston to Frankfurt Airport

When to book flights from Boston to Heidelberg

Are your dates flexible? Find out the best times to travel from Boston to Heidelberg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Boston to Heidelberg

  • Which airports will I be using when flying from Boston to Heidelberg?

    When flying out of Boston you’ll be using Boston Logan Intl. Heidelberg does not have its own airport so you’ll be flying into nearby Frankfurt am Main airport, which is 44.6 mi away.

  • How long does a flight from Boston to Heidelberg take?

    Direct flights cover the 3,656 miles separating Boston and Heidelberg in about 7h 00m.

  • How many flights are there between Boston and Heidelberg?

    10 direct flights run between Boston and Heidelberg on a daily basis. On average, there are about 76 departures each week.

  • What’s the cheapest day of the week to fly between Boston and Heidelberg?

    Consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

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

    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 Heidelberg.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Heidelberg 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 Heidelberg?

    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 Heidelberg with an airline and back to Boston with another airline.

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

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

  • Which airlines provide the cheapest flights from Boston to Heidelberg?

    In the last 72 hours, the cheapest one-way ticket between Boston and Heidelberg found on KAYAK was with TAP AIR PORTUGAL for $309. TAP AIR PORTUGAL offered a round-trip connection from $520 and United Airlines from $538.

Top tips for finding cheap flights from Boston to Heidelberg

  • There is no airport in Heidelberg. Instead, you’ll be flying into Frankfurt Airport when flying between Boston and Heidelberg.
  • The cheapest flight from Boston to Heidelberg was found 76 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly is May.

Top 5 airlines serving Boston to Heidelberg

Need help choosing which airline to fly with from Boston to Heidelberg? 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.
8.0
Alaska AirlinesOverall score based on 9991 reviews
8.1Boarding
7.9Comfort
7.1Food
7.1Entertainment
8.5Crew
Airline reviews

Waited for an hour to take off with no reason for delay.

2.0 MediocreBenjamin, May 2025ORD - SEA
Read more Alaska Airlines reviews

Waited for an hour to take off with no reason for delay.

The actual flight I was rescheduled onto was from Seattle to Bozeman. The flight itself was fine, but due to delays/air traffic issues i spent the day hanging out at the Seattle airport and had to miss a day of work.

These questions are hard to answer. It was not until I checked in that I learned my flight was going to Seattle for a connection and not Portland. I did not get notified, or asked, about this change by Alaska or Kayak. Thankfully I made this flight; but missed the connecting flight and it took me much longer to get home. A service representative for Alaska says this happens frequently with third party companies, like Kayak. Please please figure that out.

Delayed flight due to mechanical issues. You only serve water or apple juice which is pathetic. To get to connecting flight you need to take a train so dumb. All in all it’s certainly not about the customer is it? You make that perfectly clear. It’s the last time I fly with you no matter how cheap your fares are!

My youngest didn't have a assigned seat until we biard6the plane.

Booked a premium seats weeks ago and got an email the night before that id instead be seated in the cabin. Only reason I booked this overnight flight was for the better seating. All they are doing to compensate is giving a $29 coupon to use on another flight. I won’t be booking this airline again.

It was all great all around. Will travel with Alaska next trip.

I got the last seat on the plane, in the back in the corner against the window, and I paid a competitive price for my ticket several weeks before the flight.

Everything was good. However, the selections of movies and TV shows were boring and unexciting. It was disappointing.

Long delay before boarding. By the time I was informed of the delay I was already at the gate.

The seat and leg room was not good. The food and beverage service was good.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Better seating for sure. The seats were so close together for such long flights.

We paid extra for the seats with extra leg room. But we were not allocated the seats with extra leg room nor refunded the money we paid for the seats.

Food is terrible. Flight is outdated and seats are not comfy.

Not the best. Mean. Didn’t give any value to me being a united silver member and lots of attitude.

Check-in at 4:30 am in the morning was very quick and efficient.

Every single flight with them either cancel or delay for stupid shift. They are full of excuses.

After checking in online i called United to make sure I have special food ordered ( kosher option). Representative I spoke with on the phone with assured me that special meal was ordered. On the plane, during meal service I was informed that there is no note about it and no kosher meal was ordered for me. Flight attendant said she will check if maybe was a mix up and meal is somewhere. But never came back with any update. So entire flight with no food...

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

Both flights were delayed and we missed our connection. Our second flight was delayed 3 times. I have always had great service and never any problems with my flights on Lufthansa. My last two flights were, unfortunately, awful. I fly quite often to Germany and have had better luck with United than Lufthansa.

Flights delayed, and not communicated to the level I accustomed to by other airlines. The crew seems to be hating their job and it shows. It costs you nothing to smile and be a bit more friendlier. Also, no jet bridge, passengers have to use stairs, which is hard for my elderly parents. What's the point of ordering wheelchairs?

One of the stewardess was really rude to a customer right near me. I ordered water and was given sparkling water which kind of surprised me as I've always been given still water but I didn't say anything. The lady after me ordered water as well and when she saw it was sparking water, she stopped the stewardess who then said very curtly "You could have told me sooner." Whoa...that was rude! Later this same customer had some liquid spilled on her as the same stewardess handed a drink to the person sitting next to her. I know it wasn't intentional, but it was rather strange. It was very hard to navigate how to get through the Frankfurt airport to our connecting flight. No one told us you'd have to go through security again so it was rather confusing as we didn't have a boarding pass. Luckily we were able to get necessary papers and get to our flight. Sadly, my luggage did not make it out of Frankfurt though.

Quick easy flight, checked my bag and was told to pick it up in LAX but my bag stayed in Frankfurt. I am tracking it with an air tag. I filed a complaint with Alaska Airlines at my last stop in SJC.

For context: 10 hour flight FRA-YVR. Newer A330 Neo plane. Crew were amazing - friendly and efficient. The plane is newer with great overhead space. My main issue is that the Premium Econ cabin is inferior compared with other airlines. Cute amenity kit (a plus). Food was fine, though I’d like to see more wine selection beyond 1 red and 1 white. But, seats aren’t as comfortable, and all Prem Econ and Econ passengers share only 4 washrooms. Washrooms in business are off limits. In addition, Condor charges for seat selection in Prem Econ. Ridiculous on a $1500 one-way ticket. Prem Econ configuration is 2, 4 and 2, and Condor put me and my partner into 2 middle seats in the group of 4 seats, meaning we’d have a single person to our left and to our right. Again, ridiculous. A kind airport agent was able to give us 2 seats in first (and exit) row of Prem Econ but these had no footrests. I wouldn’t rush back to Premium Economy on Condor.

The crew was friendly, but the comfort of the plane and the food definitely had room for improvement.

The cabin staff was very friendly and attentive. The plane was modern and fairly quiet in flight. The video screens are large and of high quality, and I liked that the documentary movie "Anselm" was available for watching.

The flight from Saskatoon to Calgary was canceled by WestJet due to the airline strike. Condor, as the main operator, did not inform us. We found out that information just when we arrived at Saskatoon airport. Fortunately, we had enough time to drive to Calgary airport and catch the flight to Frankfurt. We couldn’t claim compensation for the missing flight because nobody takes responsibility for this situation. When we tried to contact BudgetAir, they redirected us to Condor, and Condor redirected us to WestJet. WestJet keeps saying that they are not responsible for the ticket that was bought from a third-party company.

Because of luggage I had to upgrade to premium economy , which was worth it!

Every thing was fine. The food was lack luster especially after leaving from Italy.

Very good except for the screaming 5 year old that was allowed to yell and scream whenever he wanted too! The mom obviously had no concept of “inside voices”!

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

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