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Find cheap United Airlines flights to Boston

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

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

This United Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 8/285:28 pm
IAD
-
BOS
Nonstop1h 51m
United Airlines
Mon 8/317:23 pm
BOS
-
IAD
Nonstop1h 45m
United Airlines
Deal found 7/27$158
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Mon 8/175:45 pm
IAD
-
BOS
1 stop4h 14m
United Airlines
Mon 8/245:45 am
BOS
-
IAD
Nonstop1h 35m
United Airlines
Deal found 7/26$161
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 8/1710:15 pm
IAD
-
BOS
Nonstop1h 44m
United Airlines
Thu 8/202:28 pm
BOS
-
IAD
Nonstop1h 41m
United Airlines
Deal found 7/27$165

Flights to Boston with United Airlines at a glance

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

Popular in

June

Cheapest in

January

Average price

$361

Round-trip from

$161

One-way from

$103

Good round-trip deal

$270 or less

Good one-way deal

$513 or less
Highest demand for flights to Boston with United Airlines; 12% potential price increase.
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Best time to find cheap flights to Boston with United Airlines; 1% potential price drop.
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Average price for flights to Boston with United Airlines (round-trip).
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United Airlines
  • United Airlines
  • 8/17-8/24
  • 1 total stop
  • 5h 49m total
  • USA to Boston
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United Airlines
  • United Airlines
  • 8/20
  • 1 total stop
  • 4h 22m total
  • USA to Boston
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Price to beat on a round-trip flight from the United States to Boston with United Airlines.
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Price to beat on a one-way flight from the United States to Boston with United Airlines.
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Cheapflights Insights

Find cheap United Airlines flights to Boston

How long is the flight to Boston with United Airlines?

On average, United Airlines flights from the United States to Boston take 2 hours 53 minutes. Flights to Boston 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 Boston

The most flights to Boston operated by United Airlines are scheduled on a Sunday (55 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (44 on average).

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

The best time to book a flight to Boston with United Airlines is 33 days before departure. On average, fares are higher if you book 1 day before departure.

When is the cheapest time to fly to Boston with United Airlines?

Users looking for the cheapest United Airlines fares to Boston should consider flying on Friday at noon, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.

FAQs about flights to Boston with United Airlines

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

    United Airlines flights on this route tend to land at Boston Logan Intl Airport.

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

    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 Boston tends to be with Avelo Airlines.

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

    JetBlue, Delta and American Airlines all fly to Boston and offer an alternative to United Airlines.

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

    The average price for a return flight with United Airlines is $432; with a one-way flight around $294.

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

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Popular United Airlines flights

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