$159 Find Cheap Flights from Boston to Heidelberg - 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 Heidelberg departing on 9/25. 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

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Everything you should know

Cheapest round-trip
$485
Typical prices: $596-$854
JetBlue
Mon 8/17Wed 9/2
BOS - FRA • 1 stop
Cheapest non-stop
$492
Typical prices: $634-$868
Condor
Sun 8/23Tue 9/1
BOS - FRA • Non-stop
Arrival airport
You can't fly directly to Heidelberg. It is served by Frankfurt am Main (FRA), located 44.6 miles from Heidelberg.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights 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, Aug 17 - Wed, Sep 2
JetBlue Logo
5:25 pm - 10:15 am
BOS
-
FRA
10h 50m
1 stop
JetBlue Logo
10:55 am - 6:50 pm
FRA
-
BOS
13h 55m
1 stop
$485JetBlue
Fri, Aug 21 - Wed, Aug 26
Multiple Airlines Logo
5:25 pm - 10:15 am
BOS
-
FRA
10h 50m
1 stop
Multiple Airlines Logo
10:55 am - 6:50 pm
FRA
-
BOS
13h 55m
1 stop
$488Multiple Airlines
Mon, Aug 17 - Fri, Sep 18
Multiple Airlines Logo
5:25 pm - 10:15 am
BOS
-
FRA
10h 50m
1 stop
Multiple Airlines Logo
10:55 am - 6:50 pm
FRA
-
BOS
13h 55m
1 stop
$489Multiple Airlines
Sat, Sep 26 - Sat, Oct 10
Multiple Airlines Logo
9:15 pm - 10:15 am
BOS
-
FRA
31h 00m
1 stop
Multiple Airlines Logo
10:55 am - 6:50 pm
FRA
-
BOS
13h 55m
1 stop
$491Multiple Airlines
Sun, Aug 23 - Tue, Sep 1
Condor Logo
4:45 pm - 5:45 am
BOS
-
FRA
7h 00mnonstop
Condor Logo
12:30 pm - 2:45 pm
FRA
-
BOS
8h 15mnonstop
$492Condor
Mon, Aug 17 - Wed, Sep 9
JetBlue Logo
5:25 pm - 10:15 am
BOS
-
FRA
10h 50m
1 stop
JetBlue Logo
10:55 am - 6:50 pm
FRA
-
BOS
13h 55m
1 stop
$493JetBlue
Sun, Aug 23 - Tue, Sep 1
Condor Logo
4:45 pm - 5:45 am
BOS
-
FRA
7h 00mnonstop
Condor Logo
12:30 pm - 2:45 pm
FRA
-
BOS
8h 15mnonstop
$499Condor
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
5:25 pm - 10:15 am
BOS
-
FRA
10h 50m
1 stop
Multiple Airlines Logo
8:40 pm - 2:55 pm
FRA
-
BOS
24h 15m
1 stop
$500Multiple Airlines
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
5:25 pm - 10:15 am
BOS
-
FRA
10h 50m
1 stop
Multiple Airlines Logo
8:40 pm - 2:55 pm
FRA
-
BOS
24h 15m
1 stop
$501Multiple Airlines
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
5:25 pm - 10:15 am
BOS
-
FRA
10h 50m
1 stop
Multiple Airlines Logo
8:40 pm - 2:55 pm
FRA
-
BOS
24h 15m
1 stop
$502Multiple Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$159
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 4% 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?

    11 direct flights run between Boston and Heidelberg on a daily basis. On average, there are about 83 departures each week.

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

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

  • 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 5 days, the cheapest one-way ticket between Boston and Heidelberg found on KAYAK was with TAP AIR PORTUGAL for $139. Aer Lingus offered a round-trip connection from $238 and Delta from $348.

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 59 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 January.

Reviews of the 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.
7.4
United AirlinesOverall score based on 9899 reviews
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

10.0 ExcellentNerissa, Jun 2026
BOS - ORD
Read more United Airlines reviews

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

It was Swiss. Our kosher meals were literally frozen solid and therefore inedible, and the crew didnt care.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

The flight was delayed, they didn’t even have water for the toilets or for drinks

It’s always a great time flying with united airlines.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

Every Single leg of our trip was delayed signifigantly... including a new flight we had to take because we missed our connection flight due to delays.

We had a wonderful experience with Aer Lingus. The seats were too close for the long trip. The crew was absolutely perfect. They were so caring and thoughtful! My husband did not have a good experience with Air Lingus on the phone when trying to take care of getting better seating because he is disabled and needed a wheelchair prior to the day of our flight! Mariam R. in Boston was so helpful with seating and getting help for my husband. Filip Pytka who works for OCS was extremely helpful! He made sure that we had the lift because my husband could not climb the stairs to get onto the airplane. He took us from the gate all the way down to where we needed to be.

Well, I think we left close to on time. Crew was “eh”.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

The food was mediocre, the coffee was terrible. The entertaining selection was plentiful. They lost my checked luggage which put a damper on my 10-day vacation.

Weeeeeeell, you folks know economy class on Airbuses well--you're packed in like sardines. We may actually spring for more expensive seats next time, with a little room to stretch out. NO room to stretch out in Airbus economy class! :-) Apart from this, the food was decent (considering that it's mass-produced, and has severe spatial restrictions of its own), the staff were friendly enough, and there was a wide selection of movies, etc. to watch. Overall, I'd tend to use the word "adequate" rather than "exceptional" for my experience. But really, how could it be otherwise?

Food was very bad. Boarding was disorganized and messy. Crew was friendly

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Great service on the plane and by ground staff. great prices. I was able to change seats on the plane. The allocated seats cannot be changed when checkin in online. They have to be done at the airport if you check in at the airport or on the plane by asking a stewardess / steward.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

The transatlantic flight was wonderful. The regional reminded me of jet blue. Crazy and packed. Not enough overhead space and tough on elderly.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Everything was great! My only critique is 25 euro for wifi is wild, but I get it

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

Entertainment was good. Food was mediocre. Service was mediocre. New plane was smooth

Staff was great. Space in bathrooms was very good. Boarding went smoothly due to aisles. I would like more room in coach. 2 more inches would be helpful. Lost luggage was a big issue; more on the administrative side than flight related, but diminished the flight experience.

Flight was cancelled and I got rebooked with anther airline. Also had booked a direct flight and got a layover.

The seats are designed for 12 years old, but pretty uncomfortable for the average adulte!!

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

The Lufthansa part was wonderful. The short connection flight was not.

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

Seats were not the most comfortable and food options weren’t great but overall but everything else was excellent

We had premium economy seats and the only difference from economy was legroom. Only one restroom for about 50 passengers was a little uncomfortable. Dinner was rather unpleasant but breakfast was good. Entertainment selection pretty good and you can use Bluetooth headphones. Flight attendants were okay.

Very cramped and uncomfortable for a large long flight! Not great service. My luggage was lost and is still lost 5 days later!!!

They lost my bag and have yet to find it, they won’t talk to me or give me any customer service at all. I’m now having to contact Alaska to help me because Condor won’t give me any updates and it’s been over 24 hours with nothing

I did not like that I was charged $ 60.00 for a window seat, 26A, and then assigned a middle seat, 44D, without any excuses.

Great crew. Food was pretty good. Seats are narrow and internet is expensive

Food could be better. Service was just ok without any enthusiasm...

The breakfast snack was horrible. No nutrition value. I couldn't finish it. The main meal had no taste, no real vegetable, the brownie had no chocolate taste., I was not even sure what the salad consists off.

Breakfast was terrible. Sugary yogurt, inferior pastry, poor quality fruits. No protein.

Our connection in Frankfurt was the worst ever. No one from the airline or the airport seemed to be bothered to get us into our connecting flight on time! The procedures at the airport took us forever and we barely made it into our flight. If we had missed it, I’m sure we would’ve missed our cruise. Looks like everything is on autopilot and no one is interested in helping customers anymore especially us 69 year olds

They answer the phone promptly. Crew is friendly and they work efficiently.

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

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