$577 Find Cheap Flights from Boise to Portugal - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Portugal departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Boise to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$715
Porto
Porto2 stops$721
Lisbon
Lisbon2 stops$715
Porto
Porto2 stops$721

Book Cheap Boise to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Portugal

Tue, Oct 27 - Tue, Nov 17
Multiple Airlines Logo
6:30 am - 9:20 am
BOI
-
LIS
20h 50m
2 stops
Multiple Airlines Logo
5:00 am - 9:32 pm
LIS
-
BOI
23h 32m
2 stops
$715Multiple Airlines
Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
9:40 am - 8:10 am
BOI
-
LIS
15h 30m
2 stops
United Airlines Logo
10:55 am - 9:16 pm
LIS
-
BOI
41h 21m
2 stops
$726United Airlines
Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
9:40 am - 8:10 am
BOI
-
LIS
15h 30m
2 stops
United Airlines Logo
10:55 am - 9:16 pm
LIS
-
BOI
41h 21m
2 stops
$731United Airlines
Tue, Oct 27 - Tue, Nov 17
Multiple Airlines Logo
6:30 am - 9:20 am
BOI
-
LIS
20h 50m
3 stops
Multiple Airlines Logo
12:50 pm - 11:30 am
LIS
-
BOI
29h 40m
2 stops
$734Multiple Airlines
Tue, Oct 27 - Tue, Nov 17
Multiple Airlines Logo
6:30 am - 9:20 am
BOI
-
LIS
20h 50m
2 stops
Multiple Airlines Logo
5:00 am - 9:32 pm
LIS
-
BOI
23h 32m
2 stops
$738Multiple Airlines
Tue, Oct 20 - Tue, Nov 10
Multiple Airlines Logo
6:25 am - 9:20 am
BOI
-
LIS
19h 55m
2 stops
Multiple Airlines Logo
12:50 pm - 11:30 am
LIS
-
BOI
29h 40m
2 stops
$749Multiple Airlines
Sat, Jan 16 - Sat, Jan 23
United Airlines Logo
5:22 pm - 8:10 am
BOI
-
LIS
31h 48m
2 stops
United Airlines Logo
11:20 am - 7:16 pm
LIS
-
BOI
38h 56m
2 stops
$781United Airlines
Thu, Oct 15 - Sat, Oct 24
Delta Logo
8:25 am - 2:55 pm
BOI
-
LIS
23h 30m
2 stops
Delta Logo
5:35 am - 10:08 pm
LIS
-
BOI
23h 33m
2 stops
$906Delta
Thu, Oct 15 - Sat, Oct 24
Delta Logo
8:25 am - 2:35 pm
BOI
-
LIS
23h 10m
2 stops
Delta Logo
5:35 am - 10:08 pm
LIS
-
BOI
23h 33m
2 stops
$911Delta
Tue, Sep 15 - Sat, Sep 26
Delta Logo
12:17 pm - 5:50 pm
BOI
-
LIS
22h 33m
2 stops
Delta Logo
5:00 am - 5:19 pm
LIS
-
BOI
19h 19m
2 stops
$998Delta
Booking Insights

KAYAK's insights & trends for Boise to Portugal flights

Get data-powered insights and trends into flights from Boise to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boise to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to Portugal is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are December and September, when the average cost of round-trip tickets is $2,678 and $1,137 respectively.

Find deals

Good to know

Low season

April

Cheapest flight

$577
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 35% lower on average.
Flight from Boise to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Boise to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boise to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boise to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boise to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Boise to Portugal

Information on your arrival and departure airports

Boise (BOI)