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Find cheap United Airlines flights to Lisbon

CMH — LIS
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Find United Airlines flight deals to Lisbon

Cheapest United Airlines flights from USA to Lisbon
Explore the most affordable United Airlines flight options available from USA to Lisbon. Find the lowest fares with prices last updated on July 27, 2026.

This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:25 pm
EWR
-
LIS
Nonstop6h 55m
United Airlines
Wed 12/1610:15 am
LIS
-
EWR
Nonstop8h 10m
United Airlines
Deal found 7/24$800
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:25 pm
EWR
-
LIS
Nonstop6h 55m
United Airlines
Fri 12/1811:20 am
LIS
-
EWR
1 stop14h 14m
United Airlines
Deal found 7/24$804
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:40 pm
EWR
-
LIS
1 stop9h 40m
United Airlines
Thu 12/178:55 am
LIS
-
EWR
1 stop10h 55m
United Airlines
Deal found 7/24$807

Flights to Lisbon with United Airlines at a glance

Find detailed information about United Airlines flights from USA to Lisbon. Explore the options provided by United Airlines to plan your journey from USA to Lisbon. Data last updated July 27, 2026.

Popular in

June

Cheapest in

January

Average price

$852

Round-trip from

$646

One-way from

$359
Highest demand for flights to Lisbon with United Airlines; 22% potential price increase.
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Best time to find cheap flights to Lisbon with United Airlines; 3% potential price drop.
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Average price for flights to Lisbon with United Airlines (round-trip).
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United Airlines
  • United Airlines
  • 11/3-11/10
  • 2 total stops
  • 49h 06m total
  • USA to Lisbon
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United Airlines
  • United Airlines
  • 12/28
  • 1 total stop
  • 14h 20m total
  • USA to Lisbon
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Cheapflights Insights

Find cheap United Airlines flights to Lisbon

How long is the flight to Lisbon with United Airlines?

On average, United Airlines flights from the United States to Lisbon take 7 hours 3 minutes. Flights to Lisbon from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.

United Airlines weekly flight availability to Lisbon

The most flights to Lisbon operated by United Airlines are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

When is the best time to book a flight to Lisbon with United Airlines?

The best time to book a flight to Lisbon with United Airlines is 22 days before departure. On average, fares are higher if you book 45 days before departure.

FAQs about flights to Lisbon with United Airlines

  • Which airport do United Airlines flights arrive at when travelling to Lisbon?

    United Airlines flights on this route tend to land at Lisbon Humberto Delgado Airport.

  • Is United Airlines the cheapest airline for a flight to Lisbon?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Lisbon tends to be with PLAY.

  • Are there alternative airlines other than United Airlines that fly to Lisbon?

    TAP AIR PORTUGAL, Delta and British Airways all fly to Lisbon and offer an alternative to United Airlines.

  • How much is a flight to Lisbon with United Airlines?

    The average price for a return flight with United Airlines is $945; with a one-way flight around $566.

See more FAQs

Reviews of United Airlines

See what Cheapflights users have to say about their United Airlines experience.
United Airlines
7.4
Good
10,000 reviews
Overview

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Popular United Airlines flights

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