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Heidelberg

$351+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FRA
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$590
(Expedia)

One-way from

$351
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$659
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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Highest demand for flights based on searches. 11% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This Expedia deal was found by Cheapflights users on 8/16. 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 9/512:43 pmBOI - FRA
1 stop15h 57mMultiple Airlines
Fri 9/121:45 pmFRA - BOI
1 stop18h 23mMultiple Airlines
Deal found 8/16$590
This Travelocity deal was found by Cheapflights users on 8/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:43 pmBOI - FRA
1 stop15h 57mMultiple Airlines
Fri 9/1911:40 amFRA - BOI
1 stop16h 10mMultiple Airlines
Deal found 8/17$591
This Expedia deal was found by Cheapflights users on 8/16. 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 9/3012:43 pmBOI - FRA
1 stop15h 57mMultiple Airlines
Tue 10/71:45 pmFRA - BOI
1 stop17h 20mMultiple Airlines
Deal found 8/16$614
This Expedia deal was found by Cheapflights users on 8/17. 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.
Thu 8/2112:43 pmBOI - FRA
1 stop15h 57mMultiple Airlines
Sat 8/232:05 pmFRA - BOI
1 stop16h 35mMultiple Airlines
Deal found 8/17$661
This Expedia deal was found by Cheapflights users on 8/16. 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 9/1612:43 pmBOI - FRA
1 stop15h 57mMultiple Airlines
Sat 9/272:05 pmFRA - BOI
1 stop14h 01mMultiple Airlines
Deal found 8/16$673
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Mon 11/172:31 pmBOI - FRA
1 stop12h 59mUnited Airlines
Fri 1/1610:05 amFRA - BOI
2 stops33h 57mUnited Airlines
Deal found 8/18$690
This Booking.com deal was found by Cheapflights users on 8/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:15 amBOI - FRA
2 stops40h 25mAir Canada
Fri 1/1610:40 amFRA - BOI
2 stops37h 51mAir Canada
Deal found 8/18$692
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 12/38:15 amBOI - FRA
2 stops18h 50mUnited Airlines
Wed 12/171:20 pmFRA - BOI
1 stop18h 24mUnited Airlines
Deal found 8/17$710
This Expedia deal was found by Cheapflights users on 8/16. 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 9/303:45 pmBOI - FRA
2 stops20h 00mScandinavian Airlines
Tue 10/78:30 pmFRA - BOI
2 stops34h 22mScandinavian Airlines
Deal found 8/16$734
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Wed 11/128:25 amBOI - FRA
1 stop16h 55mUnited Airlines
Sun 11/165:10 pmFRA - BOI
2 stops37h 35mUnited Airlines
Deal found 8/15$740

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 August 18, 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

Fri 9/5

12:43 pm-12:40 pm

1 stop15h 57m

Frankfurt am Main

Fri 9/12

1:45 pm-12:08 am

1 stop18h 23m

$590

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Fri 9/5

12:43 pm-12:40 pm

1 stop15h 57m

Frankfurt am Main

Fri 9/19

11:40 am-7:50 pm

1 stop16h 10m

$591

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 9/30

12:43 pm-12:40 pm

1 stop15h 57m

Frankfurt am Main

Tue 10/7

1:45 pm-11:05 pm

1 stop17h 20m

$614

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 9/16

12:43 pm-12:40 pm

1 stop15h 57m

Frankfurt am Main

Sat 9/27

2:05 pm-8:06 pm

1 stop14h 01m

$673

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Wed 12/3

12:16 pm-9:55 am

1 stop13h 39m

Frankfurt am Main

Wed 12/17

8:40 am-10:45 pm

1 stop22h 05m

$706

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Tue 9/30

3:45 pm-7:45 pm

2 stops20h 00m

Frankfurt am Main

Tue 10/7

8:30 pm-10:52 pm

2 stops34h 22m

$734

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Wed 11/12

8:25 am-9:20 am

1 stop16h 55m

Frankfurt am Main

Sun 11/16

5:10 pm-10:45 pm

2 stops37h 35m

$740

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Thu 10/30

5:25 am-8:40 am

2 stops20h 15m

Frankfurt am Main

Fri 11/28

10:40 am-10:47 pm

2 stops20h 07m

$746

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Wed 11/12

7:00 am-7:15 am

1 stop16h 15m

Frankfurt am Main

Sun 11/16

10:15 am-10:03 pm

1 stop19h 48m

$757

BoiseFrankfurt am Main

BOI - FRA

BOIFRA

Boise Air Term. Gowen Fld

Sat 9/20

2:16 pm-6:50 pm

3 stops44h 34m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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 August 18, 2025.

When flying from Boise to Heidelberg, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 18, 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
8,925 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 13h 39m. 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.

  • What is the cheapest month to book a flight from Boise to Heidelberg?

    Currently, January is the cheapest month in which you can book a flight from Boise to Heidelberg (average of $729). Flying from Boise to Heidelberg in June is currently the most expensive (average of $1,091). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$704Average$954FlexibilityNo cancel feeOn-time69%

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