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Heidelberg

$344+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FRA
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
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 July 18, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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.
Sun 10/1112:58 pm
BOI
-
FRA
1 stop15h 47m
Multiple Airlines
Tue 10/202:15 pm
FRA
-
BOI
1 stop17h 43m
Multiple Airlines
Deal found 7/15$680
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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.
Tue 9/82:16 pm
BOI
-
FRA
1 stop14h 54m
Multiple Airlines
Thu 9/242:35 pm
FRA
-
BOI
1 stop13h 50m
Multiple Airlines
Deal found 7/14$788
This Expedia deal was found by Cheapflights users on 7/13. 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.
Fri 12/111:15 pm
BOI
-
FRA
2 stops13h 55m
KLM
Wed 1/206:50 am
FRA
-
BOI
2 stops17h 59m
KLM
Deal found 7/13$847
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:45 am
BOI
-
FRA
1 stop14h 45m
United Airlines
Wed 1/205:10 pm
FRA
-
BOI
2 stops36h 06m
United Airlines
Deal found 7/14$871
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/111:25 pm
BOI
-
FRA
2 stops18h 15m
American Airlines
Wed 1/2010:15 am
FRA
-
BOI
1 stop17h 10m
American Airlines
Deal found 7/14$874
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:00 am
BOI
-
FRA
2 stops16h 10m
United Airlines
Wed 1/138:15 am
FRA
-
BOI
2 stops21h 01m
United Airlines
Deal found 7/14$876
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:45 am
BOI
-
FRA
1 stop14h 10m
United Airlines
Thu 1/1412:55 pm
FRA
-
BOI
1 stop18h 11m
United Airlines
Deal found 7/14$877
This United deal was found by Cheapflights users on 7/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:45 am
BOI
-
FRA
1 stop14h 10m
Multiple Airlines
Wed 1/2010:40 am
FRA
-
BOI
2 stops21h 19m
Multiple Airlines
Deal found 7/13$879
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/111:15 pm
BOI
-
FRA
2 stops20h 40m
Delta
Thu 1/146:50 am
FRA
-
BOI
2 stops16h 40m
Delta
Deal found 7/14$883
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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 8/1010:52 am
BOI
-
FRA
1 stop17h 48m
Multiple Airlines
Mon 8/1711:30 am
FRA
-
BOI
1 stop13h 46m
Multiple Airlines
Deal found 7/14$884
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:30 pm
BOI
-
FRA
2 stops32h 35m
United Airlines
Tue 10/205:05 pm
FRA
-
BOI
2 stops36h 30m
United Airlines
Deal found 7/15$895

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 July 18, 2026.

Round-trip from

$680
(Cheapflightsfares)

One-way from

$344
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,153
From Boise Air Term. Gowen Fld to Heidelberg
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Heidelberg
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($324 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($91 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 18, 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

Fri 12/11

11:45 am-9:55 am

1 stop14h 10m

Frankfurt am Main

Thu 1/14

12:55 pm-11:06 pm

1 stop18h 11m

$877

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 12/11

11:45 am-9:55 am

1 stop14h 10m

Frankfurt am Main

Wed 1/20

10:40 am-11:59 pm

2 stops21h 19m

$879

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 12/11

8:40 am-9:35 am

1 stop16h 55m

Frankfurt am Main

Wed 1/20

11:10 am-7:35 pm

1 stop16h 25m

$887

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sun 10/11

8:08 am-9:55 am

1 stop17h 47m

Frankfurt am Main

Tue 10/20

5:05 pm-9:35 pm

2 stops36h 30m

$898

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 9/8

8:23 am-9:55 am

1 stop17h 32m

Frankfurt am Main

Thu 9/24

5:05 pm-5:43 pm

2 stops32h 38m

$937

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 12/15

5:40 am-8:40 am

2 stops19h 00m

Frankfurt am Main

Thu 1/14

6:50 am-3:30 pm

2 stops16h 40m

$945

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sat 12/12

5:45 pm-8:40 am

2 stops30h 55m

Frankfurt am Main

Thu 1/14

6:50 am-3:30 pm

2 stops16h 40m

$959
Quickest round-trip

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sun 12/13

12:29 pm-9:35 am

1 stop13h 06m

Frankfurt am Main

Mon 1/11

11:10 am-5:55 pm

1 stop14h 45m

$999

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sun 8/9

10:52 am-12:40 pm

1 stop17h 48m

Frankfurt am Main

Sat 8/15

11:40 am-10:07 pm

1 stop18h 27m

$1,091

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sun 8/9

6:30 am-9:55 am

2 stops19h 25m

Frankfurt am Main

Sat 8/15

4:00 pm-5:58 pm

2 stops33h 58m

$1,229

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 18 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

No data available for this route at this time. Please check back soon.

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 July 18, 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
10,006 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hanan,Aug 2023

IAH - FRA

Too much turbulence, I know it’s not the airline’s fault, but it made the flight not comfortable
United Airlines
7.4
Good
10,006 reviews
United Airlines
7.4
Good
10,006 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hanan,Aug 2023

IAH - FRA

Too much turbulence, I know it’s not the airline’s fault, but it made the flight not 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 14h 10m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 5162 mi.

  • 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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$606Average$906FlexibilityNo cancel feeOn-time69%

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