$612+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FRA
May 9 — May 161
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
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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 April 9, 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 April 9, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/4. 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 4/4![Multiple Airlines logo]()
$763
This United Airlines deal was found by Cheapflights users on 4/5. 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 11/16:20 am
BOI
- FRA
1 stop20h 10m
United Airlines
Thu 11/55:10 pm
FRA
- BOI
2 stops32h 45m
United Airlines
Deal found 4/5![United Airlines logo]()
$836
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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 5/312:15 pm
BOI
- FRA
1 stop16h 30m
Multiple Airlines
Thu 5/72:35 pm
FRA
- BOI
1 stop16h 27m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$860
This Condor deal was found by Cheapflights users on 4/6. 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.
Wed 5/62:57 pm
BOI
- FRA
1 stop13h 48m
Multiple Airlines
Mon 5/1111:40 am
FRA
- BOI
1 stop18h 47m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$862
This United Airlines deal was found by Cheapflights users on 4/5. 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 5/62:33 pm
BOI
- FRA
2 stops19h 32m
United Airlines
Wed 5/1312:40 pm
FRA
- BOI
2 stops16h 37m
United Airlines
Deal found 4/5![United Airlines logo]()
$899
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 April 9, 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 April 9, 2026.
This Condor deal was found by Cheapflights users on 4/6. 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.
Wed 5/62:57 pm
BOI
- FRA
1 stop13h 48m
Multiple Airlines
Mon 5/1111:40 am
FRA
- BOI
1 stop18h 47m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$862
This United Airlines deal was found by Cheapflights users on 4/5. 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 5/64:20 pm
BOI
- FRA
2 stops17h 45m
United Airlines
Wed 5/1310:40 am
FRA
- BOI
1 stop19h 36m
United Airlines
Deal found 4/5![United Airlines logo]()
$902
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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.
Sat 5/26:39 pm
BOI
- FRA
2 stops34h 06m
Alaska Airlines
Wed 5/611:45 am
FRA
- BOI
2 stops28h 22m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 4/4. 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 5/1912:30 pm
BOI
- FRA
1 stop13h 55m
United Airlines
Tue 5/2611:20 am
FRA
- BOI
1 stop14h 36m
United Airlines
Deal found 4/4![United Airlines logo]()
$1,017
This Expedia deal was found by Cheapflights users on 4/8. 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 5/191:59 pm
BOI
- FRA
1 stop15h 11m
Multiple Airlines
Mon 6/152:45 pm
FRA
- BOI
1 stop17h 19m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,141
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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 4/247:20 pm
BOI
- FRA
1 stop33h 35m
Alaska Airlines
Sun 5/1011:45 am
FRA
- BOI
2 stops28h 22m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$1,142
This United Airlines deal was found by Cheapflights users on 4/6. 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 4/2712:04 pm
BOI
- FRA
2 stops16h 01m
United Airlines
Tue 5/128:50 am
FRA
- BOI
2 stops21h 45m
United Airlines
Deal found 4/6![United Airlines logo]()
$1,048
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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.
Sun 5/36:08 pm
BOI
- FRA
2 stops28h 02m
Alaska Airlines
Thu 5/711:40 am
FRA
- BOI
2 stops30h 02m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$1,172
This United Airlines deal was found by Cheapflights users on 4/5. 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 4/235:29 pm
BOI
- FRA
2 stops34h 36m
United Airlines
Mon 5/113:15 pm
FRA
- BOI
2 stops35h 02m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,116
Last-minute flights from Boise to HeidelbergDiscover last-minute flight deals from Boise to Heidelberg. Data last updated April 9, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Heidelberg. Data last updated April 9, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/4. 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 4/4![Multiple Airlines logo]()
$763
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 4/272:57 pm
BOI
- FRA
1 stop14h 13m
Condor
Tue 5/122:15 pm
FRA
- BOI
1 stop13h 56m
Condor
Deal found 4/5![Condor logo]()
$907
This Cheapflightsfares deal was found by Cheapflights users on 4/5. 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.
Sat 5/22:57 pm
BOI
- FRA
1 stop13h 58m
Multiple Airlines
Wed 5/62:15 pm
FRA
- BOI
1 stop13h 56m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$931
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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 5/312:15 pm
BOI
- FRA
1 stop16h 30m
Multiple Airlines
Thu 5/72:35 pm
FRA
- BOI
1 stop16h 27m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$860
This Condor deal was found by Cheapflights users on 4/6. 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.
Wed 5/62:57 pm
BOI
- FRA
1 stop13h 48m
Multiple Airlines
Mon 5/1111:40 am
FRA
- BOI
1 stop18h 47m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$862
This United Airlines deal was found by Cheapflights users on 4/5. 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 5/62:33 pm
BOI
- FRA
2 stops19h 32m
United Airlines
Wed 5/1312:40 pm
FRA
- BOI
2 stops16h 37m
United Airlines
Deal found 4/5![United Airlines logo]()
$899
This Expedia deal was found by Cheapflights users on 4/5. 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.
Wed 5/66:00 am
BOI
- FRA
1 stop18h 45m
Iberia
Wed 5/1310:55 am
FRA
- BOI
1 stop18h 12m
Iberia
Deal found 4/5![Iberia logo]()
$905
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 April 9, 2026.
Search for one-way flight options from Boise to Heidelberg. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 6/156:08 pm
BOI
- FRA
3 stops31h 32m
WestJet
Deal found 4/7![WestJet logo]()
$612
This Cheapflightsfares deal was found by Cheapflights users on 4/8. 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 4/162:22 pm
BOI
- FRA
1 stop14h 48m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$632
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 6/154:15 pm
BOI
- FRA
2 stops33h 25m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$667
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 5/158:51 pm
BOI
- FRA
2 stops28h 49m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$689
This Air Canada deal was found by Cheapflights users on 4/8. 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.
Thu 4/166:15 am
BOI
- FRA
3 stops20h 55m
Air Canada
Deal found 4/8![Air Canada logo]()
$719
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Wed 7/16:08 pm
BOI
- FRA
3 stops41h 47m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$739
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Wed 7/16:08 pm
BOI
- FRA
2 stops31h 42m
WestJet
Deal found 4/7![WestJet logo]()
$762
This Expedia deal was found by Cheapflights users on 4/7. 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 5/156:09 am
BOI
- FRA
1 stop18h 36m
Iberia
Deal found 4/7![Iberia logo]()
$769
This United Airlines deal was found by Cheapflights users on 4/7. 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 6/155:00 am
BOI
- FRA
1 stop20h 20m
United Airlines
Deal found 4/7![United Airlines logo]()
$878
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 9, 2026.
Round-trip from | $763 (Cheapflightsfares) |
|---|---|
One-way from | $612 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $908 |
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 9, 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
Wed 5/6
2:57 pm-12:45 pm
1 stop13h 48m
Frankfurt am Main
Mon 5/11
11:40 am-10:27 pm
1 stop18h 47m
$862
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Wed 5/6
4:20 pm-6:05 pm
2 stops17h 45m
Frankfurt am Main
Wed 5/13
10:40 am-10:16 pm
1 stop19h 36m
$902
Quickest round-trip
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Tue 5/19
12:30 pm-10:25 am
1 stop13h 55m
Frankfurt am Main
Tue 5/26
11:20 am-5:56 pm
1 stop14h 36m
$1,017
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Mon 4/27
12:04 pm-12:05 pm
2 stops16h 01m
Frankfurt am Main
Tue 5/12
8:50 am-10:35 pm
2 stops21h 45m
$1,048
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Thu 4/23
5:29 pm-12:05 pm
2 stops34h 36m
Frankfurt am Main
Mon 5/11
3:15 pm-6:17 pm
2 stops35h 02m
$1,116
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Sat 5/2
6:39 pm-12:45 pm
2 stops34h 06m
Frankfurt am Main
Wed 5/6
11:45 am-8:07 am
2 stops28h 22m
$1,127
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Tue 5/19
1:59 pm-1:10 pm
1 stop15h 11m
Frankfurt am Main
Mon 6/15
2:45 pm-12:04 am
1 stop17h 19m
$1,141
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Fri 4/24
7:20 pm-12:55 pm
1 stop33h 35m
Frankfurt am Main
Sun 5/10
11:45 am-8:07 am
2 stops28h 22m
$1,142
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Sun 5/3
6:08 pm-6:10 am
2 stops28h 02m
Frankfurt am Main
Thu 5/7
11:40 am-9:42 am
2 stops30h 02m
$1,172
Cheapest one-way
BoiseFrankfurt am Main
BOI - FRA
BOIFRA
Boise Air Term. Gowen Fld
Mon 6/15
6:08 pm-9:40 am
3 stops31h 32m
$612
Showing 1-10 of 16 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.
Cheapflights Insights
Everything you need to know about your flight from Boise to Heidelberg
BOI-HE1
BOI-FRA
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 9, 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.
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
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.
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Boise and Heidelberg flights
Browse other Boise and Heidelberg flight options. Last updated on April 9, 2026.
Other flights from Boise
Browse through other flights departing from Boise. Flights are based on user searches made on Cheapflights and were last updated on April 9, 2026.
Popular flight searches
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Boise to Heidelberg flights
Consider these flights traveling from Boise to Heidelberg.
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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$656 | Average$908 | FlexibilityNo cancel fee | On-time69% |