$408+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FRA
Jun 16 — Jun 231
Round-trip
1 adult, Economy
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Cheapest flights from Boise to HeidelbergExplore 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 May 17, 2026.
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 May 17, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:14 am
BOI
- FRA
1 stop18h 26m
Multiple Airlines
Wed 9/3011:40 am
FRA
- BOI
1 stop18h 47m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$783
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:59 pm
BOI
- FRA
1 stop15h 11m
Multiple Airlines
Tue 6/1611:40 am
FRA
- BOI
1 stop18h 27m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$873
This KAYAK deal was found by Cheapflights users on 5/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:30 pm
BOI
- FRA
2 stops39h 05m
Scandinavian Airlines
Sun 9/203:20 pm
FRA
- BOI
2 stops39h 44m
Scandinavian Airlines
Deal found 5/14![Scandinavian Airlines logo]()
$896
This Travelocity deal was found by Cheapflights users on 5/16. 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 Travelocity 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
Fri 8/2111:40 am
FRA
- BOI
1 stop18h 47m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$900
This Justfly.com deal was found by Cheapflights users on 5/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:08 pm
BOI
- FRA
1 stop15h 02m
Multiple Airlines
Tue 10/271:50 pm
FRA
- BOI
1 stop17h 08m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$905
This Justfly.com deal was found by Cheapflights users on 5/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:08 pm
BOI
- FRA
1 stop15h 02m
Multiple Airlines
Tue 10/271:50 pm
FRA
- BOI
1 stop17h 08m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$909
This Expedia deal was found by Cheapflights users on 5/13. 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.
Mon 6/19:00 am
BOI
- FRA
1 stop17h 50m
Multiple Airlines
Tue 6/1611:40 am
FRA
- BOI
1 stop18h 27m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$921
This KAYAK deal was found by Cheapflights users on 5/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:08 pm
BOI
- FRA
1 stop14h 37m
Multiple Airlines
Tue 10/271:50 pm
FRA
- BOI
1 stop17h 08m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$923
This KAYAK deal was found by Cheapflights users on 5/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:23 am
BOI
- FRA
2 stops20h 12m
Scandinavian Airlines
Tue 10/278:30 pm
FRA
- BOI
2 stops33h 38m
Scandinavian Airlines
Deal found 5/16![Scandinavian Airlines logo]()
$925
This Air Canada deal was found by Cheapflights users on 5/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:05 pm
BOI
- FRA
2 stops29h 00m
Air Canada
Tue 10/2710:40 am
FRA
- BOI
2 stops37h 09m
Air Canada
Deal found 5/16![Air Canada logo]()
$936
This Justfly.com deal was found by Cheapflights users on 5/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:08 pm
BOI
- FRA
1 stop15h 02m
Multiple Airlines
Thu 10/291:50 pm
FRA
- BOI
1 stop17h 08m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$939
Best flights from Boise to HeidelbergDiscover carefully curated flight deals from Boise to Heidelberg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
Discover carefully curated flight deals from Boise to Heidelberg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
This Expedia deal was found by Cheapflights users on 5/13. 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.
Mon 6/19:00 am
BOI
- FRA
1 stop17h 50m
Multiple Airlines
Tue 6/1611:40 am
FRA
- BOI
1 stop18h 27m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$921
This United Airlines deal was found by Cheapflights users on 5/13. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:44 pm
BOI
- FRA
2 stops19h 21m
United Airlines
Wed 9/308:50 am
FRA
- BOI
1 stop22h 16m
United Airlines
Deal found 5/13![United Airlines logo]()
$957
This Gotogate deal was found by Cheapflights users on 5/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:05 pm
BOI
- FRA
2 stops53h 00m
Air Canada
Thu 7/165:05 pm
FRA
- BOI
2 stops50h 27m
Air Canada
Deal found 5/14![Air Canada logo]()
$1,120
This Delta deal was found by Cheapflights users on 5/14. 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.
Sun 6/288:42 am
BOI
- FRA
2 stops18h 43m
Delta
Sun 7/510:15 am
FRA
- BOI
2 stops21h 32m
Delta
Deal found 5/14![Delta logo]()
$1,342
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:00 am
BOI
- FRA
1 stop17h 50m
Alaska Airlines
Tue 6/1612:30 pm
FRA
- BOI
2 stops29h 13m
Alaska Airlines
Deal found 5/13![Alaska Airlines logo]()
$1,369
This United Airlines deal was found by Cheapflights users on 5/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:20 am
BOI
- FRA
1 stop15h 00m
United Airlines
Fri 8/215:35 pm
FRA
- BOI
2 stops28h 03m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,039
This Condor deal was found by Cheapflights users on 5/15. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2610:52 am
BOI
- FRA
1 stop17h 48m
Multiple Airlines
Tue 8/42:15 pm
FRA
- BOI
1 stop17h 49m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,090
This United Airlines deal was found by Cheapflights users on 5/15. 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 7/267:05 pm
BOI
- FRA
1 stop31h 20m
United Airlines
Tue 8/45:35 pm
FRA
- BOI
2 stops32h 21m
United Airlines
Deal found 5/15![United Airlines logo]()
$1,045
This FlightHub deal was found by Cheapflights users on 5/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:47 pm
BOI
- FRA
1 stop32h 33m
Multiple Airlines
Thu 7/162:35 pm
FRA
- BOI
1 stop13h 32m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,140
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Thu 9/36:30 am
BOI
- FRA
2 stops27h 35m
United Airlines
Sun 9/2012:55 pm
FRA
- BOI
1 stop16h 36m
United Airlines
Deal found 5/14![United Airlines logo]()
$1,077
This Condor deal was found by Cheapflights users on 5/13. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:13 am
BOI
- FRA
1 stop17h 37m
Multiple Airlines
Thu 6/252:35 pm
FRA
- BOI
1 stop17h 29m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,182
This Justfly.com deal was found by Cheapflights users on 5/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:35 am
BOI
- FRA
1 stop22h 10m
Multiple Airlines
Sun 6/142:15 pm
FRA
- BOI
1 stop16h 09m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$1,197
Last-minute flights from Boise to HeidelbergDiscover last-minute flight deals from Boise to Heidelberg. Data last updated May 17, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Heidelberg. Data last updated May 17, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 5/14. 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 5/1910:05 am
BOI
- FRA
1 stop19h 05m
Multiple Airlines
Wed 6/32:15 pm
FRA
- BOI
1 stop17h 43m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,114
This Justfly.com deal was found by Cheapflights users on 5/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:28 pm
BOI
- FRA
1 stop34h 27m
Multiple Airlines
Fri 5/222:40 pm
FRA
- BOI
1 stop17h 18m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$989
This Cheapflightsfares deal was found by Cheapflights users on 5/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2011:56 am
BOI
- FRA
1 stop16h 49m
Multiple Airlines
Sat 5/3011:25 am
FRA
- BOI
1 stop13h 48m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$1,080
This Justfly.com deal was found by Cheapflights users on 5/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:07 pm
BOI
- FRA
1 stop34h 48m
Multiple Airlines
Sat 5/3011:25 am
FRA
- BOI
1 stop20h 33m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,133
This Condor deal was found by Cheapflights users on 5/15. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:59 pm
BOI
- FRA
1 stop14h 56m
Multiple Airlines
Sat 5/3011:25 am
FRA
- BOI
1 stop20h 33m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,076
This Expedia deal was found by Cheapflights users on 5/13. 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.
Mon 6/19:00 am
BOI
- FRA
1 stop17h 50m
Multiple Airlines
Tue 6/1611:40 am
FRA
- BOI
1 stop18h 27m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$921
This Condor deal was found by Cheapflights users on 5/15. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:00 am
BOI
- FRA
1 stop17h 50m
Multiple Airlines
Mon 6/1511:40 am
FRA
- BOI
1 stop18h 27m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,010
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:59 pm
BOI
- FRA
1 stop15h 11m
Multiple Airlines
Tue 6/1611:40 am
FRA
- BOI
1 stop18h 27m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$873
This Justfly.com deal was found by Cheapflights users on 5/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/138:15 am
BOI
- FRA
1 stop21h 05m
Multiple Airlines
Sat 6/2011:25 am
FRA
- BOI
1 stop20h 23m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,125
This Condor deal was found by Cheapflights users on 5/13. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:13 am
BOI
- FRA
1 stop17h 37m
Multiple Airlines
Thu 6/252:35 pm
FRA
- BOI
1 stop17h 29m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,182
One-way flights from Boise to HeidelbergSearch for one-way flight options from Boise to Heidelberg. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
Search for one-way flight options from Boise to Heidelberg. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
This Mytrip deal was found by Cheapflights users on 5/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:44 pm
BOI
- FRA
2 stops52h 16m
Air Canada
Deal found 5/13![Air Canada logo]()
$408
This United Airlines deal was found by Cheapflights users on 5/13. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:44 pm
BOI
- FRA
2 stops35h 21m
United Airlines
Deal found 5/13![United Airlines logo]()
$450
This TravelUp deal was found by Cheapflights users on 5/13. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:31 am
BOI
- FRA
1 stop14h 49m
Lufthansa
Deal found 5/13![Lufthansa logo]()
$451
This Air Canada deal was found by Cheapflights users on 5/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:00 am
BOI
- FRA
3 stops19h 00m
Air Canada
Deal found 5/13![Air Canada logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:17 pm
BOI
- FRA
3 stops21h 23m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$622
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:35 am
BOI
- FRA
2 stops22h 25m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$654
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:23 am
BOI
- FRA
3 stops22h 22m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$680
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/278:03 am
BOI
- FRA
3 stops54h 42m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$696
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 May 17, 2026.
Round-trip from | $783 (Cheapflightsfares) |
|---|---|
One-way from | $408 (Mytrip) |
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 May 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
Cheapest round-trip
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Mon 6/1
9:00 am-10:50 am
1 stop17h 50m
Frankfurt am Main
Tue 6/16
11:40 am-10:07 pm
1 stop18h 27m
$921
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Mon 9/14
2:44 pm-6:05 pm
2 stops19h 21m
Frankfurt am Main
Wed 9/30
8:50 am-11:06 pm
1 stop22h 16m
$957
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Mon 8/10
10:20 am-9:20 am
1 stop15h 00m
Frankfurt am Main
Fri 8/21
5:35 pm-1:38 pm
2 stops28h 03m
$1,039
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Sun 7/26
7:05 pm-10:25 am
1 stop31h 20m
Frankfurt am Main
Tue 8/4
5:35 pm-5:56 pm
2 stops32h 21m
$1,045
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Thu 9/3
6:30 am-6:05 pm
2 stops27h 35m
Frankfurt am Main
Sun 9/20
12:55 pm-9:31 pm
1 stop16h 36m
$1,077
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Sun 7/26
10:52 am-12:40 pm
1 stop17h 48m
Frankfurt am Main
Tue 8/4
2:15 pm-12:04 am
1 stop17h 49m
$1,090
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Fri 7/3
7:05 pm-8:05 am
2 stops53h 00m
Frankfurt am Main
Thu 7/16
5:05 pm-11:32 am
2 stops50h 27m
$1,120
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Fri 7/3
8:47 pm-1:20 pm
1 stop32h 33m
Frankfurt am Main
Thu 7/16
2:35 pm-8:07 pm
1 stop13h 32m
$1,140
Quickest round-trip
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Mon 6/15
9:13 am-10:50 am
1 stop17h 37m
Frankfurt am Main
Thu 6/25
2:35 pm-12:04 am
1 stop17h 29m
$1,182
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Sun 6/7
6:35 am-12:45 pm
1 stop22h 10m
Frankfurt am Main
Sun 6/14
2:15 pm-10:24 pm
1 stop16h 09m
$1,197
Showing 1-10 of 21 resultsSorted by cheapest first
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.
BOI-FRA
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.
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Everything you need to know about your flight from Boise to Heidelberg
BOI-HE1
BOI-FRA
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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 May 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.
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
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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 May 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$606 | Average$786 | FlexibilityNo cancel fee | On-time69% |