$726 Find Cheap Flights from Boise to Portugal - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Portugal departing on 12/6. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$726
Porto
Porto2 stops$722
Lisbon
Lisbon2 stops$726
Porto
Porto2 stops$722

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

Sun, Dec 6 - Wed, Dec 9
United Airlines Logo
9:40 am - 8:10 am
BOI
-
LIS
15h 30m
2 stops
United Airlines Logo
11:20 am - 9:16 pm
LIS
-
BOI
40h 56m
2 stops
$726United Airlines
Sat, Nov 7 - Wed, Nov 11
Multiple Airlines Logo
6:30 am - 8:40 am
BOI
-
LIS
19h 10m
2 stops
Multiple Airlines Logo
11:20 am - 9:38 am
LIS
-
BOI
29h 18m
3 stops
$818Multiple Airlines
Thu, Oct 15 - Sat, Oct 24
Delta Logo
8:22 am - 11:15 am
BOI
-
LIS
19h 53m
2 stops
Delta Logo
5:00 am - 6:33 pm
LIS
-
BOI
20h 33m
2 stops
$885Delta
Thu, Oct 15 - Sat, Oct 24
Delta Logo
10:34 am - 2:35 pm
BOI
-
LIS
21h 01m
2 stops
Delta Logo
5:00 am - 6:33 pm
LIS
-
BOI
20h 33m
2 stops
$889Delta
Tue, Sep 8 - Sat, Sep 19
Scandinavian Airlines Logo
12:14 pm - 11:15 pm
BOI
-
LIS
28h 01m
2 stops
Scandinavian Airlines Logo
10:55 pm - 6:39 pm
LIS
-
BOI
26h 44m
2 stops
$907Scandinavian Airlines
Tue, Sep 8 - Sat, Sep 19
Scandinavian Airlines Logo
12:14 pm - 11:15 pm
BOI
-
LIS
28h 01m
2 stops
Scandinavian Airlines Logo
10:55 pm - 6:39 pm
LIS
-
BOI
26h 44m
2 stops
$908Scandinavian Airlines
Sun, Aug 30 - Thu, Sep 10
United Airlines Logo
6:30 am - 9:20 am
BOI
-
LIS
19h 50m
2 stops
United Airlines Logo
11:25 am - 11:26 am
LIS
-
BOI
31h 01m
2 stops
$928United Airlines
Fri, Aug 21 - Fri, Aug 28
Multiple Airlines Logo
10:35 am - 11:15 am
BOI
-
LIS
17h 40m
2 stops
Multiple Airlines Logo
5:00 am - 5:55 pm
LIS
-
BOI
19h 55m
2 stops
$948Multiple Airlines
Sun, Aug 30 - Thu, Sep 10
Multiple Airlines Logo
8:15 am - 9:20 am
BOI
-
LIS
18h 05m
2 stops
Multiple Airlines Logo
11:25 am - 11:26 am
LIS
-
BOI
31h 01m
3 stops
$958Multiple Airlines
Tue, Sep 8 - Sat, Sep 19
United Airlines Logo
6:30 am - 9:20 am
BOI
-
LIS
19h 50m
2 stops
United Airlines Logo
11:25 am - 9:37 pm
LIS
-
BOI
41h 12m
2 stops
$988United Airlines
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 August and September, when the average cost of round-trip tickets is $1,079 and $1,029 respectively.

Find deals

Good to know

Low seasonNovember
Cheapest flight$726
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 40% 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)