$367+ Cheap flights from Idaho to Portugal
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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
Aug 3 — Aug 101
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to Portugal with Cheapflights
1. Tell us where you want to go
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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Cheapest flights from Idaho to PortugalExplore the most affordable flight options available from Idaho to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.
Explore the most affordable flight options available from Idaho to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/17:00 am
JAC
- LIS
2 stops18h 10m
United Airlines
Thu 12/310:55 am
LIS
- JAC
2 stops41h 07m
United Airlines
Deal found 7/2![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/67:00 am
BOI
- LIS
2 stops18h 10m
United Airlines
Wed 12/911:20 am
LIS
- BOI
2 stops43h 39m
United Airlines
Deal found 7/2![United Airlines logo]()
$726
This Air France deal was found by Cheapflights users on 7/1. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/181:10 pm
JAC
- LIS
2 stops21h 20m
Multiple Airlines
Mon 11/303:35 pm
LIS
- JAC
2 stops31h 54m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$775
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/295:00 am
GEG
- LIS
2 stops19h 10m
United Airlines
Fri 1/85:00 am
LIS
- GEG
2 stops24h 09m
United Airlines
Deal found 7/2![United Airlines logo]()
$786
This United Airlines deal was found by Cheapflights users on 7/3. 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 9/305:00 am
GEG
- LIS
2 stops20h 20m
United Airlines
Fri 10/2311:25 am
LIS
- GEG
2 stops39h 06m
United Airlines
Deal found 7/3![United Airlines logo]()
$809
This Delta deal was found by Cheapflights users on 6/30. 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.
Tue 12/297:55 am
GEG
- LIS
2 stops23h 15m
Delta
Sat 1/95:00 am
LIS
- GEG
2 stops22h 27m
Delta
Deal found 6/30![Delta logo]()
$846
This FlightHub deal was found by Cheapflights users on 6/29. 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.
Sat 10/171:40 pm
GEG
- LIS
2 stops37h 25m
Multiple Airlines
Sat 10/246:15 am
LIS
- GEG
2 stops22h 34m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$850
This Delta deal was found by Cheapflights users on 6/29. 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.
Thu 10/83:36 pm
BOI
- LIS
2 stops19h 14m
Delta
Fri 10/165:00 am
LIS
- BOI
2 stops24h 08m
Delta
Deal found 6/29![Delta logo]()
$879
This Delta deal was found by Cheapflights users on 7/3. 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.
Thu 10/158:22 am
BOI
- LIS
2 stops19h 53m
Delta
Sat 10/245:00 am
LIS
- BOI
2 stops20h 33m
Delta
Deal found 7/3![Delta logo]()
$885
This Delta deal was found by Cheapflights users on 7/3. 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.
Mon 9/281:00 pm
GEG
- LIS
2 stops20h 50m
Delta
Sat 10/105:35 am
LIS
- GEG
2 stops23h 36m
Delta
Deal found 7/3![Delta logo]()
$886
This FlightHub deal was found by Cheapflights users on 6/30. 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.
Tue 9/810:34 am
BOI
- LIS
2 stops29h 41m
Scandinavian Airlines
Sat 9/1910:55 pm
LIS
- BOI
2 stops26h 44m
Scandinavian Airlines
Deal found 6/30![Scandinavian Airlines logo]()
$907
This United Airlines deal was found by Cheapflights users on 6/30. 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 9/14:25 pm
JAC
- LIS
2 stops23h 20m
United Airlines
Wed 9/1611:25 am
LIS
- JAC
2 stops40h 15m
United Airlines
Deal found 6/30![United Airlines logo]()
$932
Best flights from Idaho to PortugalDiscover carefully curated flight deals from Idaho to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
Discover carefully curated flight deals from Idaho to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
This United Airlines deal was found by Cheapflights users on 6/29. 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 12/17:00 am
JAC
- LIS
2 stops18h 10m
United Airlines
Thu 12/310:55 am
LIS
- JAC
2 stops41h 07m
United Airlines
Deal found 6/29![United Airlines logo]()
$726
This Delta deal was found by Cheapflights users on 6/30. 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.
Tue 12/299:10 am
GEG
- LIS
2 stops18h 10m
Delta
Fri 1/85:00 am
LIS
- GEG
2 stops22h 27m
Delta
Deal found 6/30![Delta logo]()
$786
This FlightHub deal was found by Cheapflights users on 6/29. 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.
Sat 10/171:40 pm
GEG
- LIS
2 stops37h 25m
Multiple Airlines
Sat 10/246:15 am
LIS
- GEG
2 stops22h 34m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$850
This Justfly.com deal was found by Cheapflights users on 7/3. 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 9/812:14 pm
BOI
- LIS
2 stops28h 01m
Scandinavian Airlines
Sat 9/1910:55 pm
LIS
- BOI
2 stops26h 44m
Scandinavian Airlines
Deal found 7/3![Scandinavian Airlines logo]()
$907
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/67:00 am
BOI
- LIS
2 stops18h 10m
United Airlines
Wed 12/911:20 am
LIS
- BOI
2 stops43h 39m
United Airlines
Deal found 7/2![United Airlines logo]()
$726
This Delta deal was found by Cheapflights users on 6/30. 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.
Tue 12/297:55 am
GEG
- LIS
2 stops23h 15m
Delta
Sat 1/95:00 am
LIS
- GEG
2 stops22h 27m
Delta
Deal found 6/30![Delta logo]()
$846
This United Airlines deal was found by Cheapflights users on 7/1. 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 12/295:00 am
GEG
- LIS
2 stops19h 10m
United Airlines
Fri 1/85:00 am
LIS
- GEG
2 stops24h 09m
United Airlines
Deal found 7/1![United Airlines logo]()
$786
This Delta deal was found by Cheapflights users on 6/29. 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.
Thu 10/83:36 pm
BOI
- LIS
2 stops19h 14m
Delta
Fri 10/165:00 am
LIS
- BOI
2 stops24h 08m
Delta
Deal found 6/29![Delta logo]()
$879
This Delta deal was found by Cheapflights users on 7/3. 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.
Thu 10/158:22 am
BOI
- LIS
2 stops19h 53m
Delta
Sat 10/245:00 am
LIS
- BOI
2 stops20h 33m
Delta
Deal found 7/3![Delta logo]()
$885
This United Airlines deal was found by Cheapflights users on 6/30. 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 9/14:25 pm
JAC
- LIS
2 stops23h 20m
United Airlines
Wed 9/1611:25 am
LIS
- JAC
2 stops40h 15m
United Airlines
Deal found 6/30![United Airlines logo]()
$932
This Delta deal was found by Cheapflights users on 7/3. 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.
Mon 9/281:00 pm
GEG
- LIS
2 stops20h 50m
Delta
Sat 10/105:35 am
LIS
- GEG
2 stops23h 36m
Delta
Deal found 7/3![Delta logo]()
$886
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/27:00 am
JAC
- LIS
2 stops21h 05m
United Airlines
Thu 9/1011:25 am
LIS
- JAC
2 stops40h 43m
United Airlines
Deal found 6/29![United Airlines logo]()
$932
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 8/155:00 am
GEG
- LIS
2 stops46h 05m
United Airlines
Sat 8/225:05 am
LIS
- GEG
2 stops62h 34m
United Airlines
Deal found 6/30![United Airlines logo]()
$978
This Air Canada deal was found by Cheapflights users on 7/3. 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.
Wed 9/3011:10 am
GEG
- LIS
3 stops24h 15m
Multiple Airlines
Fri 10/231:00 pm
LIS
- GEG
2 stops31h 34m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,619
This Air Canada deal was found by Cheapflights users on 7/3. 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 7/3111:09 am
GEG
- LIS
3 stops26h 26m
Multiple Airlines
Fri 8/71:00 pm
LIS
- GEG
2 stops30h 48m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,999
This oojo deal was found by Cheapflights users on 6/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/294:47 pm
GEG
- LIS
1 stop34h 53m
Multiple Airlines
Fri 1/811:15 am
LIS
- GEG
1 stop36h 53m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$2,187
Last-minute flights from Idaho to PortugalDiscover last-minute flight deals from Idaho to Portugal. Data last updated July 4, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Portugal. Data last updated July 4, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/1. 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 7/2612:20 pm
BOI
- LIS
2 stops22h 30m
Delta
Tue 8/45:00 am
LIS
- BOI
2 stops20h 48m
Delta
Deal found 7/1![Delta logo]()
$1,139
This KAYAK deal was found by Cheapflights users on 7/1. 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 7/261:57 pm
BOI
- LIS
2 stops26h 08m
British Airways
Tue 8/47:10 am
LIS
- BOI
2 stops23h 11m
British Airways
Deal found 7/1![British Airways logo]()
$1,364
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Sun 7/266:23 am
BOI
- LIS
2 stops20h 12m
Multiple Airlines
Tue 8/410:15 am
LIS
- BOI
1 stop30h 57m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$1,860
This Delta deal was found by Cheapflights users on 6/30. 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.
Tue 7/283:29 pm
BOI
- LIS
2 stops19h 21m
Delta
Tue 8/45:00 am
LIS
- BOI
2 stops24h 30m
Delta
Deal found 6/30![Delta logo]()
$938
This Air Canada deal was found by Cheapflights users on 6/30. 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.
Tue 7/2810:20 am
BOI
- LIS
3 stops17h 45m
Multiple Airlines
Tue 8/411:25 am
LIS
- BOI
2 stops29h 28m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,545
This Air France deal was found by Cheapflights users on 7/3. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:30 pm
GEG
- LIS
2 stops17h 20m
Air France
Fri 8/75:35 am
LIS
- GEG
2 stops17h 44m
Air France
Deal found 7/3![Air France logo]()
$1,175
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 7/314:21 pm
GEG
- LIS
1 stop38h 29m
Multiple Airlines
Fri 8/74:45 pm
LIS
- GEG
2 stops34h 15m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,811
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 8/155:00 am
GEG
- LIS
2 stops46h 05m
United Airlines
Sat 8/225:05 am
LIS
- GEG
2 stops62h 34m
United Airlines
Deal found 6/30![United Airlines logo]()
$978
One-way flights from Idaho to PortugalSearch for one-way flight options from Idaho to Portugal. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
Search for one-way flight options from Idaho to Portugal. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/3011:30 am
GEG
- FAO
2 stops16h 10m
United Airlines
Deal found 7/2![United Airlines logo]()
$367
This KLM deal was found by Cheapflights users on 7/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/285:45 am
GEG
- FAO
2 stops24h 05m
KLM
Deal found 7/2![KLM logo]()
$368
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Sat 11/215:00 am
GEG
- LIS
2 stops44h 20m
United Airlines
Deal found 7/3![United Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/2511:30 am
GEG
- FAO
2 stops20h 35m
United Airlines
Deal found 7/2![United Airlines logo]()
$417
This KLM deal was found by Cheapflights users on 7/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/247:00 am
GEG
- FAO
2 stops22h 50m
KLM
Deal found 7/2![KLM logo]()
$418
This Expedia deal was found by Cheapflights users on 6/30. 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.
Sat 8/157:05 pm
BOI
- LIS
2 stops31h 15m
Air Canada
Deal found 6/30![Air Canada logo]()
$458
This United Airlines deal was found by Cheapflights users on 6/30. 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 9/21:45 pm
JAC
- LIS
2 stops26h 00m
United Airlines
Deal found 6/30![United Airlines logo]()
$471
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 8/158:03 am
BOI
- LIS
3 stops29h 52m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 12/291:23 pm
GEG
- FAO
3 stops48h 52m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 12/309:45 am
GEG
- FAO
3 stops23h 45m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$557
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 12/285:06 am
GEG
- FAO
3 stops28h 34m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$572
This Kiwi.com deal was found by Cheapflights users on 7/2. 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.
Thu 12/244:47 pm
GEG
- FAO
3 stops30h 33m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$628
Find flight deals from Idaho to Portugal
Keep the following information in mind while searching for Idaho to Portugal flight deals. Data was last updated July 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $726 (United Airlines) |
One-way from | $367 (United Airlines) |
Popular in | December |
Cheapest in | November |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Portugal 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 4, 2026.
Use the filters below to find and compare flights from Idaho to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
JacksonLisbon
JAC - LIS
JACLIS
Jackson Hole
Tue 12/1
7:00 am-8:10 am
2 stops18h 10m
Lisbon Humberto Delgado
Thu 12/3
10:55 am-9:02 pm
2 stops41h 07m
$726
BoiseLisbon
BOI - LIS
BOILIS
Boise Air Term. Gowen Fld
Sun 12/6
7:00 am-8:10 am
2 stops18h 10m
Lisbon Humberto Delgado
Wed 12/9
11:20 am-11:59 pm
2 stops43h 39m
$726
SpokaneLisbon
GEG - LIS
GEGLIS
Spokane
Tue 12/29
9:10 am-11:20 am
2 stops18h 10m
Lisbon Humberto Delgado
Fri 1/8
5:00 am-7:27 pm
2 stops22h 27m
$786
SpokaneLisbon
GEG - LIS
GEGLIS
Spokane
Tue 12/29
5:00 am-8:10 am
2 stops19h 10m
Lisbon Humberto Delgado
Fri 1/8
5:00 am-9:09 pm
2 stops24h 09m
$786
SpokaneLisbon
GEG - LIS
GEGLIS
Spokane
Tue 12/29
7:55 am-3:10 pm
2 stops23h 15m
Lisbon Humberto Delgado
Sat 1/9
5:00 am-7:27 pm
2 stops22h 27m
$846
SpokaneLisbon
GEG - LIS
GEGLIS
Spokane
Sat 10/17
1:40 pm-11:05 am
2 stops37h 25m
Lisbon Humberto Delgado
Sat 10/24
6:15 am-8:49 pm
2 stops22h 34m
$850
BoiseLisbon
BOI - LIS
BOILIS
Boise Air Term. Gowen Fld
Thu 10/8
3:36 pm-5:50 pm
2 stops19h 14m
Lisbon Humberto Delgado
Fri 10/16
5:00 am-10:08 pm
2 stops24h 08m
$879
Quickest round-trip
BoiseLisbon
BOI - LIS
BOILIS
Boise Air Term. Gowen Fld
Thu 10/15
8:22 am-11:15 am
2 stops19h 53m
Lisbon Humberto Delgado
Sat 10/24
5:00 am-6:33 pm
2 stops20h 33m
$885
SpokaneLisbon
GEG - LIS
GEGLIS
Spokane
Mon 9/28
1:00 pm-5:50 pm
2 stops20h 50m
Lisbon Humberto Delgado
Sat 10/10
5:35 am-9:11 pm
2 stops23h 36m
$886
BoiseLisbon
BOI - LIS
BOILIS
Boise Air Term. Gowen Fld
Tue 9/8
12:14 pm-11:15 pm
2 stops28h 01m
Lisbon Humberto Delgado
Sat 9/19
10:55 pm-6:39 pm
2 stops26h 44m
$907
Showing 1-10 of 35 resultsSorted by cheapest first
Best time to book a flight from Idaho to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Idaho with our price prediction graph.
JAC-LIS
GEG-LIS
BOI-LIS
GEG-FAO
Estimated round-trip price
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Cheapflights Insights
Everything you need to know about your flight from Idaho to Portugal
USID-PT0
JAC-LIS
GEG-LIS
BOI-LIS
GEG-FAO
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Complete your trip
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Idaho and Portugal flights
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Top 2 airlines flying from Idaho to Portugal
Discover the top 2 airlines that operate flights from Idaho to Portugal. 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$549 | Average$827 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$618 | Average$937 | FlexibilityNo cancel fee | On-time69% |