$442 Cheap KLM flights from Boston to Lisbon (BOS to LIS)
Find The Best Day To Fly from Boston to Lisbon
Amazing KLM BOS to LIS Flight Deals
The cheapest flights to Humberto Delgado found within the past 7 days were $734 round trip and $442 one way. Prices and availability subject to change. Additional terms may apply.
LIS From BOS Economy Coach Packages on Similar Airlines
Discover our best KLM flight from Boston BOS to Lisbon LIS
To find the best deals on flights to Boston from Lisbon with KLM, just enter your travel dates, filter by KLM, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Boston BOS to Lisbon LIS with KLM
If you’re planning a round trip, booking return flights with KLM is usually the most cost-effective option. With airfares ranging from $734 to $734, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way KLM flights from Boston BOS to Lisbon LIS
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way KLM flight from Boston to Lisbon costs from $442. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Lisbon LIS from Boston BOS with KLM
To find a cheap KLM flight from Boston BOS to Lisbon LIS, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on KLM flights from Boston BOS to Lisbon LIS
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover.
Find nonstop flights from Boston BOS to Lisbon LIS with KLM
If you’re keen to be on Lisbon soil fast, don’t waste time with a stopover—filter your search results to show direct KLM flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for KLM flights from Boston BOS to Lisbon LIS
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Lisbon LIS from Boston BOS with KLM on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ATL | USA | Hartsfield-Jackson Atlanta Intl. | 113 |
| DTW | USA | Detroit Metropolitan Wayne County | 65 |
| MSP | USA | Minneapolis - St. Paul Intl. | 47 |
| CAN | CHN | Baiyun Intl. | 46 |
| SLC | USA | Salt Lake City Intl. | 42 |
| PVG | CHN | Pudong Intl. | 41 |
| AMS | NLD | Schiphol | 38 |
| XMN | CHN | Xiamen Intl. | 35 |
| HGH | CHN | Xiaoshan Intl. | 25 |
| SEA | USA | Seattle - Tacoma Intl. | 25 |
Travelers ❤️ these 🏨 after their flight to Lisbon
Meliá Lisboa Aeroporto
"Not impressed for what we paid. Steam shower in the spa was broken. Room was run down. Our view out of the dirty window was of the buildings air duct exhaust."
Reviewed on Sep 19, 2026
Hotel Star Inn Lisbon Aeroporto
"Clean room and helpful staff. Good breakfast starting at 2am. We spent the night after late arrival and early next day departure. 4 minutes walk from/to the terminal."
Reviewed on Sep 19, 2026
Radisson Blu Hotel
"The room was reasonably clean, but the property itself is quite old: worn out carpets, hallways stink like cigarette smoke."
Reviewed on Sep 19, 2026
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