Are direct flights from Boise to Lisbon always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers. However, connecting flights can often be more affordable, especially for longer distances. The 'best' option usually depends on your priorities regarding cost versus travel time.

Can flexible travel dates help on Boise to Lisbon flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Flying on weekdays or during off-peak seasons often results in lower fares compared to weekends or popular holiday periods. Adjusting your departure or return by a few days may yield savings.

What extra costs should I check before booking Boise to Lisbon flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget.

Flights From Boise

To Lisbon

Cheap Flights from Boise to Lisbon

Browse current best options from Boise. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Boise

RatePunk searches hundreds of travel sites at once for deals on flights to Lisbon

Prices updated 4 days ago

459 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 8, 2026.)

Today’s best flight deals from Boise to Lisbon

Explore current cheapest deals departing from Boise to Lisbon

2027-02-02 – 2027-02-16
BOI - Lisbon
78% AI deal score
$744
$724
Round trip
2026-12-01 – 2026-12-08
BOI - Lisbon
82% AI deal score
$894
$731
Round trip
2027-01-10 – 2027-01-16
BOI - Lisbon
80% AI deal score
$847
$791
Round trip
2026-10-14 – 2026-10-22
BOI - Lisbon
78% AI deal score
$796
$824
Round trip
2026-10-14 – 2026-10-21
BOI - Lisbon
78% AI deal score
$820
$830
Round trip
2026-10-14 – 2026-10-29
BOI - Lisbon
78% AI deal score
$774
$834
Round trip
2026-11-06 – 2026-11-30
BOI - Lisbon
76% AI deal score
$796
$865
Round trip
2026-10-02 – 2026-10-08
BOI - Lisbon
77% AI deal score
$820
$948
Round trip
2026-10-01 – 2026-10-20
BOI - Lisbon
73% AI deal score
$764
$959
Round trip
2026-10-01 – 2026-10-21
BOI - Lisbon
72% AI deal score
$763
$964
Round trip

Boise to Lisbon: Overview

Insights for flights from Boise to Lisbon

Most itineraries for cheap flights from Boise to Lisbon connect at least once, as 0% of recent fares are non-stop. For the remaining flights, the typical number of connections is 2. This means you will almost certainly have at least one stop on your journey from Boise to Lisbon.

When considering when is the cheapest time to fly from Boise to Lisbon, you'll find that February stands out with a median fare of $561. Other affordable options include October, with a median fare of $581, and January, where the median fare is $582. These months offer significantly lower prices compared to the overall median.

Fares from Boise to Lisbon typically range from $717–$1520, with a median of $885. Right now, current fares are above the typical level for this route. Only 8% of recent fares were classified as a good price, indicating that finding a low fare can be challenging. New deals for this route show up several times a week, so setting a price alert can be beneficial.

A typical journey from Boise to Lisbon takes approximately 30h 56m, including connections. Given that most itineraries involve at least two stops, this duration accounts for the time spent in transit and during layovers. This is a long-haul route, covering a distance of 8295 km.

How much is a round trip from Boise to Lisbon

Regular price: $619 - $1,786

Prices are currently within the regular range.

The regular price range for flights from Boise to Lisbon is between 619 USD and 1786 USD. The current lowest deal is 721 USD with Iberia Airlines, for travel from Feb 2 to Feb 16.

now $721

Low $619

High $1,786

The cheapest time to fly from Boise to Lisbon

The cheapest month to fly from Boise to Lisbon is February, with a median price of $561. The most expensive month is July, with a median price of $1566. Prices are generally lower from January to December.

February

Cheapest

Flights from $561

July

Most Expensive

Flights from $1,566

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boise to Lisbon

Alaska Airlines, Inc.

TAP Portugal

WestJet

Frontier Airlines

Last-minute flights going from Boise to Lisbon

Mon, Sep 14

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Alaska Airlines, Inc., TAP Portugal

$859

$2,234

One-way

Tue, Sep 22

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Alaska Airlines, Inc., TAP Portugal

$970

$2,662

One-way

Mon, Sep 28

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

United Airlines

$818

$1,803

One-way

Thu, Oct 1

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

United Airlines

$820

$2,865

One-way

Fri, Oct 2

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Deutsche Luft Hansa

$821

$948

One-way

Sat, Oct 3

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Deutsche Luft Hansa

$797

$1,016

One-way

Biggest price drops on these dates for flights from Boise to Lisbon

7 nights

Dec 1 - Dec 8

$894 → $732

18%

6 nights

Jan 10 - Jan 16

$847 → $791

9 nights

Mar 12 - Mar 21

$1,111 → $1,084

14 nights

Feb 2 - Feb 16

$744 → $725

Popular Airports to fly from Boise to Lisbon

Boise - Lisbon route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Boise to Lisbon are above the typical level for this route.

📅 Best time to fly

February, October, and January are cheapest

Historically, the cheapest months to fly are February ($561), October ($581), and January ($582).

⏱️ Flight duration

Connecting flights average 30h 56m

The typical flight duration for connecting flights from Boise to Lisbon is 30h 56m.

✈️ Airlines & availability

No direct flights available

There are no direct flights available from Boise to Lisbon; all routes include at least two stopovers.

🏆 Airline highlight

Iberia Airlines offers a recent deal

A recent deal was found on Iberia Airlines for $721 from February 2 to February 16.

🎯 Booking tip

Deals appear regularly

Deals for flights from Boise to Lisbon appear regularly, offering opportunities for savings.

Boise main airports to depart from

Boise (BOI)

Cheapest

Boise Airport (BOI) is a convenient departure point for flights to Lisbon.

📍 ~6 km from city center (reachable by car)

💸 Flights from ~$725

Lisbon main airports to arrive at

Lisbon Portela (LIS)

Cheapest

Lisbon Portela Airport is the primary international gateway for flights arriving in Lisbon.

📍 ~6 km from city center (reachable by car, metro, bus)

💸 Flights from ~$725

Airports nearby Lisbon used as alternative

Porto (OPO)

Cheapest

Lisbon, Portugal

91% AI deal score

$5,343

$3,719

Save $1,624

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Nov 07

Lisbon, Portugal

91% AI deal score

$5,352

$3,867

Save $1,485

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Oct 31

Lisbon, Portugal

91% AI deal score

$5,568

$3,898

Save $1,670

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Oct 18

Lisbon, Portugal

91% AI deal score

$5,870

$3,954

Save $1,916

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Oct 18

Lisbon, Portugal

90% AI deal score

$5,342

$3,864

Save $1,478

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Oct 29

Lisbon, Portugal

90% AI deal score

$5,505

$3,919

Save $1,586

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Oct 22

Lisbon, Portugal

90% AI deal score

$5,343

$3,921

Save $1,422

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Feb 06

Lisbon, Portugal

90% AI deal score

$5,249

$3,932

Save $1,317

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Nov 30

Lisbon, Portugal

90% AI deal score

$5,552

$3,949

Save $1,603

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Nov 25

Lisbon, Portugal

90% AI deal score

$5,490

$3,964

Save $1,526

Alaska Airlines, Inc., +1

Business Class

From BOI

Elite

Nov 07

Lisbon, Portugal

90% AI deal score

$5,254

$3,989

Save $1,265

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Lisbon

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking flights in advance, often several months out, can sometimes lead to lower prices. However, last-minute deals can occasionally appear, so monitoring prices is usually a good strategy. Prices can fluctuate based on demand and seasonality.

Comparing nearby airports for both your origin and destination can sometimes uncover more economical flight options. While it might add to your ground travel time, the savings on airfare can occasionally be significant. Always factor in the total cost and convenience.

Boise to Lisbon: Overview

Insights for flights from Boise to Lisbon

How much is a round trip from Boise to Lisbon

Regular price: $619 - $1,786

Prices are currently within the regular range.

The regular price range for flights from Boise to Lisbon is between 619 USD and 1786 USD. The current lowest deal is 721 USD with Iberia Airlines, for travel from Feb 2 to Feb 16.

now $721

Low $619

High $1,786

The cheapest time to fly from Boise to Lisbon

February

Cheapest

Flights from $561

July

Most Expensive

Flights from $1,566

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boise to Lisbon

Alaska Airlines, Inc.

TAP Portugal

WestJet

Frontier Airlines

Last-minute flights going from Boise to Lisbon

Mon, Sep 14

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Alaska Airlines, Inc., TAP Portugal

$859

$2,234

One-way

Tue, Sep 22

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Alaska Airlines, Inc., TAP Portugal

$970

$2,662

One-way

Mon, Sep 28

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

United Airlines

$818

$1,803

One-way

Thu, Oct 1

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

United Airlines

$820

$2,865

One-way

Fri, Oct 2

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Deutsche Luft Hansa

$821

$948

One-way

Sat, Oct 3

⌛ Last-Minute

BOI - Lisbon

Boise (BOI) - Lisbon (LIS)

Deutsche Luft Hansa

$797

$1,016

One-way

Biggest price drops on these dates for flights from Boise to Lisbon

7 nights

Dec 1 - Dec 8

$894 → $732

18%

6 nights

Jan 10 - Jan 16

$847 → $791

9 nights

Mar 12 - Mar 21

$1,111 → $1,084

14 nights

Feb 2 - Feb 16

$744 → $725

Popular Airports to fly from Boise to Lisbon

Boise - Lisbon route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Boise to Lisbon are above the typical level for this route.

📅 Best time to fly

February, October, and January are cheapest

Historically, the cheapest months to fly are February ($561), October ($581), and January ($582).

⏱️ Flight duration

Connecting flights average 30h 56m

The typical flight duration for connecting flights from Boise to Lisbon is 30h 56m.

✈️ Airlines & availability

No direct flights available

There are no direct flights available from Boise to Lisbon; all routes include at least two stopovers.

🏆 Airline highlight

Iberia Airlines offers a recent deal

A recent deal was found on Iberia Airlines for $721 from February 2 to February 16.

🎯 Booking tip

Deals appear regularly

Deals for flights from Boise to Lisbon appear regularly, offering opportunities for savings.

Boise main airports to depart from

Boise (BOI)

Cheapest

Boise Airport (BOI) is a convenient departure point for flights to Lisbon.

📍 ~6 km from city center (reachable by car)

💸 Flights from ~$725

Lisbon main airports to arrive at

Lisbon Portela (LIS)

Cheapest

Lisbon Portela Airport is the primary international gateway for flights arriving in Lisbon.

📍 ~6 km from city center (reachable by car, metro, bus)

💸 Flights from ~$725

Airports nearby Lisbon used as alternative

Porto (OPO)

Cheapest

Porto is a major international hub with extensive European and long-haul connectivity, useful if flights to LIS are unavailable or overpriced.

Lisbon, Portugal

90% AI deal score

$5,254

$3,989

Save $1,265

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Lisbon

Cheap Flights from Boise to Lisbon

Today’s best flight deals from Boise to Lisbon

Boise to Lisbon: Overview

Insights for flights from Boise to Lisbon

How much is a round trip from Boise to Lisbon

The cheapest time to fly from Boise to Lisbon

Direct flights from Boise to Lisbon

Last-minute flights going from Boise to Lisbon

Biggest price drops on these dates for flights from Boise to Lisbon

Popular Airports to fly from Boise to Lisbon

Boise - Lisbon route insights

Recent fares are above the typical level

February, October, and January are cheapest

Connecting flights average 30h 56m

No direct flights available

Iberia Airlines offers a recent deal

Deals appear regularly

Boise main airports to depart from

Lisbon main airports to arrive at

Airports nearby Lisbon used as alternative

Business & First Class Flight Deals to Lisbon

Best Elite deals to Lisbon

Dec 16

Oct 23

Nov 07

Oct 31

Oct 18

Oct 18

Oct 29

Oct 22

Feb 06

Nov 30

Nov 25

Nov 07

Frequently Asked Questions About Flights to Lisbon

How can I find cheap flights from Boise to Lisbon?

When should I book flights from Boise to Lisbon?

Should I compare nearby airports for flights from Boise to Lisbon?

Are direct flights from Boise to Lisbon always the best option?

Can flexible travel dates help on Boise to Lisbon flights?

What extra costs should I check before booking Boise to Lisbon flights?

Related routes

More routes from Boise

Flights to Lisbon from other cities

Boise to Lisbon: Overview

Insights for flights from Boise to Lisbon

How much is a round trip from Boise to Lisbon

The cheapest time to fly from Boise to Lisbon

Direct flights from Boise to Lisbon

Last-minute flights going from Boise to Lisbon

Biggest price drops on these dates for flights from Boise to Lisbon

Popular Airports to fly from Boise to Lisbon

Boise - Lisbon route insights

Recent fares are above the typical level

February, October, and January are cheapest

Connecting flights average 30h 56m

No direct flights available

Iberia Airlines offers a recent deal

Deals appear regularly

Boise main airports to depart from

Lisbon main airports to arrive at

Airports nearby Lisbon used as alternative

Business & First Class Flight Deals to Lisbon

Best Elite deals to Lisbon

Dec 16

Oct 23

Nov 07

Oct 31

Oct 18

Oct 18

Oct 29

Oct 22

Feb 06

Nov 30

Nov 25

Nov 07

Frequently Asked Questions About Flights to Lisbon

How can I find cheap flights from Boise to Lisbon?

When should I book flights from Boise to Lisbon?

Should I compare nearby airports for flights from Boise to Lisbon?