Cheap Flights from Boise (BOI) to Lisbon (LIS)

Compare Boise to Lisbon flight deals

Find the cheapest month or even day of the year to fly to Lisbon

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Flight deals from Boise to Lisbon

Looking for a cheap last-minute deal or the best return flight from Boise Airport to Lisbon Airport? If you want to travel next month, return fares start from £755. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Boise to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boise to Lisbon flights are currently cheapest in October.

Boise to Lisbon: Alternative routes

Compare routes from Boise to Lisbon below. You may find an airport to fly into that's cheaper, faster, or easier than Lisbon.

Boise to Lisbon: Flight information

The things to know before you go.
Cheapest flight found£256
Cheapest month to flyOctober

Finding cheap flights from Boise to Lisbon: Frequently asked questions

The best price we found for a return flight from Boise to Lisbon is £545. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Boise to Lisbon. But we found flights with one or more stops from £545.
As of June 2026, there are no flights flying from Boise to Lisbon.
The cheapest month to fly from Boise to Lisbon is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Lisbon Airport on Tuesday, 23 February 2027.
No airlines currently offer direct flights between Boise Airport and Lisbon Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Lisbon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Lisbon.

Flying from Boise Airport (BOI) to Lisbon Airport (LIS): what you need to know

  • Lisbon's timezone is UTC+0, making Lisbon seven hours ahead of Boise.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your BOI to LIS flight.

  • You'll likely experience longer lines in popular months like October. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a good idea.

Handy information about Boise Airport (BOI)

  • You'll find BOI at 3201 Airport Way.

  • 84% of flights leaving Boise Airport reach their destination on time. Given its strong performance rating, disruptions are unlikely when setting off from BOI.

  • Central Boise to Boise Airport is around 6 kms (4 miles). Depending on traffic, it'll take about 15 minutes to get there if you're ride-sharing, catching a taxi or driving.

  • Catching public transport? Expect a trip time of around 30 minutes.

  • Searching for a handy hotel near BOI? If you're boarding an early flight from Boise Airport to Lisbon Airport, these accommodation options will have you moments from your check-in counter:

Arriving at Lisbon Airport (LIS)

When to fly to Lisbon Airport (LIS)

  • It's time to plan your travel dates for your flight from Boise Airport to Lisbon Airport. August is the most popular month to head to Lisbon. If you want a quieter vibe, go in March.

  • When reserving your flight from Boise Airport to Lisbon Airport, think about the kind of weather you like. August is the warmest month in Lisbon, with temperatures ranging from 16ºC to 29ºC.

  • January sees average temperatures of between 8ºC and 16ºC. Look for cheap tickets from BOI to LIS sometime then if you like travelling in cooler conditions.

Explore more of Portugal

  • Lisbon is easy to fall in love with, but there are so many other parts of Portugal waiting to be discovered. About 274 kms (170 miles) north of Lisbon, a visit to Porto will keep you on the go. Don't miss top attractions like Ribeira District, Rio Douro and Livraria Lello.

  • Amadora is another sought-after destination in Portugal and is around 8 kms (5 miles) north-west of Lisbon. No trip is complete without visiting Roman Villa, Park Fantasia and Palácio dos Condes da Lousã.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.