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Heidelberg

$763+ Cheap flights from Boise (BOI) to Heidelberg, Germany

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FRA
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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Cheap 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 April 17, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 4/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:57 pm
BOI
-
FRA
1 stop14h 13m
Multiple Airlines
Mon 5/1111:40 am
FRA
-
BOI
1 stop18h 47m
Multiple Airlines
Deal found 4/15$763
This Cheapflightsfares deal was found by Cheapflights users on 4/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:10 pm
BOI
-
FRA
1 stop14h 00m
Multiple Airlines
Tue 10/202:15 pm
FRA
-
BOI
1 stop13h 55m
Multiple Airlines
Deal found 4/15$787
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:10 pm
BOI
-
FRA
1 stop14h 00m
Multiple Airlines
Thu 10/222:35 pm
FRA
-
BOI
1 stop16h 12m
Multiple Airlines
Deal found 4/14$802
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Sun 11/112:29 pm
BOI
-
FRA
1 stop13h 26m
United Airlines
Thu 11/55:10 pm
FRA
-
BOI
2 stops36h 06m
United Airlines
Deal found 4/12$838
This Justfly.com deal was found by Cheapflights users on 4/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:05 pm
BOI
-
FRA
2 stops34h 55m
Air Canada
Thu 10/2210:15 am
FRA
-
BOI
2 stops17h 01m
Air Canada
Deal found 4/14$877
This Cheapflightsfares deal was found by Cheapflights users on 4/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:57 pm
BOI
-
FRA
1 stop14h 03m
Multiple Airlines
Sun 5/1011:40 am
FRA
-
BOI
1 stop18h 47m
Multiple Airlines
Deal found 4/15$882

Find flight deals from Boise to Heidelberg

Keep the following information in mind while searching for Boise to Heidelberg flight deals. Data was last updated April 17, 2026.

Round-trip from

$787
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$1,031
From Boise Air Term. Gowen Fld to Heidelberg
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($353 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($85 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 17, 2026.
Use the filters below to find and compare flights from Boise to Heidelberg that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 10/6

5:22 pm-6:05 pm

2 stops16h 43m

Frankfurt am Main

Tue 10/20

5:05 pm-5:55 pm

2 stops32h 50m

$941

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Wed 5/13

11:56 am-12:45 pm

1 stop16h 49m

Frankfurt am Main

Wed 5/20

2:15 pm-11:58 pm

1 stop17h 43m

$949

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sun 8/2

10:20 am-9:20 am

1 stop15h 00m

Frankfurt am Main

Tue 8/11

5:30 pm-11:00 am

1 stop25h 30m

$1,091

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sat 8/1

7:05 pm-9:45 am

1 stop30h 40m

Frankfurt am Main

Wed 8/12

5:20 pm-5:53 pm

2 stops32h 33m

$1,095

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Mon 4/27

11:35 pm-8:55 am

1 stop25h 20m

Frankfurt am Main

Mon 5/11

7:00 am-8:34 pm

2 stops21h 34m

$1,110

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Mon 4/27

4:05 pm-3:15 pm

1 stop15h 10m

Frankfurt am Main

Mon 5/11

11:20 am-9:17 pm

1 stop17h 57m

$1,112

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 7/31

12:38 pm-9:55 am

1 stop13h 17m

Frankfurt am Main

Wed 8/12

5:20 pm-5:53 pm

2 stops32h 33m

$1,149
Quickest round-trip

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sun 8/2

12:38 pm-9:55 am

1 stop13h 17m

Frankfurt am Main

Sun 8/16

12:40 pm-10:46 pm

1 stop18h 06m

$1,155

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Wed 5/20

12:30 pm-3:50 pm

2 stops19h 20m

Frankfurt am Main

Sun 6/14

5:05 pm-5:56 pm

2 stops32h 51m

$1,207

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Wed 5/20

12:15 pm-11:05 am

2 stops14h 50m

Frankfurt am Main

Sat 5/30

11:45 am-8:34 pm

2 stops16h 49m

$1,223

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 12 resultsSorted by cheapest first
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

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 April 17, 2026.
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
9,602 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,602 reviews
United Airlines
7.4
Good
9,602 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 16h 43m. Fly via United Airlines or Delta to get the fastest option. Airlines will cover a distance of 5162 mi. This flight may include one or multiple stops.

  • 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 April 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$656Average$908FlexibilityNo cancel feeOn-time69%

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