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Heidelberg

$376+ Cheap flights from Boise (BOI) to Heidelberg, Germany

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FRA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Boise to Heidelberg

Keep the following information in mind while searching for Boise to Heidelberg flight deals. Data was last updated November 26, 2025.

Round-trip from

$563
(Flysmarter)

One-way from

$376
(Billigflug)

Popular in

September

Cheapest in

August

Average price

$752
From Boise Air Term. Gowen Fld to Heidelberg
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One-way flight from Boise Air Term. Gowen Fld to Heidelberg
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 5% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Boise to Heidelberg

Cheapest flights from Boise to Heidelberg
Explore the most affordable flight options available from Boise to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Delta deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/211:44 amBOI - FRA
2 stops15h 31mDelta
Thu 12/1110:40 amFRA - BOI
2 stops32h 24mDelta
Deal found 11/26$579
This Expedia deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:49 pmBOI - FRA
2 stops31h 51mMultiple Airlines
Thu 12/1110:20 amFRA - BOI
1 stop20h 36mMultiple Airlines
Deal found 11/26$625
This United Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:35 amBOI - FRA
1 stop24h 20mUnited Airlines
Fri 1/910:05 amFRA - BOI
2 stops32h 01mUnited Airlines
Deal found 11/25$709
This Ovago deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:49 pmBOI - FRA
2 stops15h 16mLufthansa
Thu 12/1111:10 amFRA - BOI
1 stop18h 15mLufthansa
Deal found 11/26$744
This Orbitz deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:15 amBOI - FRA
2 stops40h 25mMultiple Airlines
Fri 1/99:40 pmFRA - BOI
2 stops29h 33mMultiple Airlines
Deal found 11/25$767
This KAYAK deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:20 amBOI - FRA
1 stop21h 40mLufthansa
Fri 1/98:40 amFRA - BOI
1 stop22h 17mLufthansa
Deal found 11/25$1,126
This Alaska Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:47 pmBOI - FRA
2 stops30h 03mAlaska Airlines
Fri 1/911:15 amFRA - BOI
3 stops33h 36mAlaska Airlines
Deal found 11/25$1,273
This United Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:49 pmBOI - FRA
2 stops34h 16mUnited Airlines
Tue 12/2312:55 pmFRA - BOI
2 stops29h 06mUnited Airlines
Deal found 11/25$1,296
This Expedia deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1612:16 pmBOI - FRA
1 stop13h 39mLufthansa
Tue 12/2310:15 pmFRA - BOI
2 stops51h 48mLufthansa
Deal found 11/25$1,308

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Heidelberg that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Boise to Heidelberg that are best for you.

Fly from

Boise

Fly to

Heidelberg

Route

Depart

Return

Price

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 12/2

5:50 am-11:15 am

2 stops21h 25m

Frankfurt am Main

Thu 12/11

10:40 am-12:42 am

2 stops22h 02m

$579

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Wed 1/21

2:37 pm-6:05 pm

2 stops19h 28m

Frankfurt am Main

Sun 1/25

5:10 pm-10:57 pm

2 stops37h 47m

$584

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 12/2

2:49 pm-6:40 am

2 stops31h 51m

Frankfurt am Main

Thu 12/11

10:20 am-10:56 pm

1 stop20h 36m

$625

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 12/26

6:35 am-2:55 pm

1 stop24h 20m

Frankfurt am Main

Fri 1/9

10:05 am-10:06 am

2 stops32h 01m

$709

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 12/2

2:49 pm-2:05 pm

2 stops15h 16m

Frankfurt am Main

Thu 12/11

11:10 am-9:25 pm

1 stop18h 15m

$744

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 2/6

2:37 pm-4:05 pm

2 stops17h 28m

$376

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 2/6

7:45 am-2:55 pm

1 stop23h 10m

$380

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sat 12/20

5:00 am-4:00 pm

2 stops27h 00m

$931

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sat 12/20

8:20 am-3:00 pm

2 stops22h 40m

$1,056

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 12/19

11:35 pm-9:35 am

2 stops26h 00m

$1,223

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 13 results
1
2

Best time to book a flight from Boise to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg from Boise with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boise to Heidelberg

What is the cheapest time of day to fly from BOI to HE1?

Find hourly flight availability from Boise to Heidelberg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

It’s optimal to fly from Boise to Heidelberg in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Boise to Heidelberg?

Reviews of airlines servicing Heidelberg

Get insights into the airlines that provide service to Heidelberg. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heidelberg. Reviews last updated November 26, 2025.
Read reviews from past customers who have flown United Airlines from Boise to Heidelberg. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,046 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,046 reviews
United Airlines
7.4
Good
9,046 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Boise to Heidelberg. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boise to Heidelberg?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly out of if you book a flight from Boise to Heidelberg. You should not have trouble finding flights to Heidelberg from Air Term. Gowen Fld; the airport handles an average of 0 outbound flights to Heidelberg per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Boise airport to Heidelberg. It is only a 3.3 mi journey to Air Term. Gowen Fld (BOI) from Boise’s city center.

  • How long is the flight from Boise to Heidelberg?

    There are many flights that can get you from Boise to Heidelberg in 19h 28m. Fly via Delta or United Airlines to get the fastest option. Airlines will cover a distance of 5162 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Boise to Heidelberg one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $380. Users have also found prices from $931 and $1,056 on United Airlines and Lufthansa, respectively.

  • Can I find deals for flights from Boise to Heidelberg that include hotel bookings?

    Yes. In addition to deals on Boise to Heidelberg flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Heidelberg?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Heidelberg.

  • Can I find deals for business class flights from Boise to Heidelberg?

    Yes. Cheapflights offers flight deals from Boise to Heidelberg by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Boise to Heidelberg

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Boise to Heidelberg

Discover the top airline that operate flights from Boise to Heidelberg. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$670Average$908FlexibilityNo cancel feeOn-time69%

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