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United Airlines flights from Boston to San Francisco (BOS - SFO)

BOS — SFO
Apr 29 — May 61
From?
To?
Mon 4/29
Mon 5/6
1 adult, Economy
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Cheapflights users flying from Boston to San Francisco on United Airlines typically fly into San Francisco and depart from Boston Logan Intl. Select your dates above for pricing.

United Airlines flights from Boston to San Francisco in 2024

Find detailed information about United Airlines flights from Boston to San Francisco. Explore the options provided by United Airlines to plan your journey from Boston to San Francisco. Data last updated April 24, 2024.

Popular in

June

Cheapest in

January

Average price (all airlines)

$418

One-way from

$100

Round-trip from

$226
Highest demand for flights from Boston Logan Intl to San Francisco; 13% potential price increase.
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Best time to find cheap flights from Boston Logan Intl to San Francisco; 2% potential price drop.
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Average price for all Boston Logan Intl to San Francisco flights (one-way and round-trip).
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Cheapest one-way United Airlines flight from Boston Logan Intl to San Francisco
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Cheapest round-trip United Airlines flight from Boston Logan Intl to San Francisco
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  • Can I get a flight from Boston to San Francisco on United Airlines for under $500?

    There are 50 flights available on United Airlines from Boston to San Francisco for under $500. These prices can change based on many factors including date and time. To find BOS-SFO flight prices for your dates, click here.

  • How do most travelers feel about United Airlines?

    8,761 Cheapflights users have left reviews for United Airlines and have rated the airline 6.4/10. If you are looking to travel from Boston to San Francisco on United Airlines, input your dates in the form above for our best prices!

Cheapest United Airlines flights from Boston to San Francisco

Discover the cheapest flight options specifically offered by United Airlines for travel from Boston to San Francisco. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,086,534 searches. The data was last updated on April 24, 2024.
Wed 5/156:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Sat 5/253:07 pmSFO - BOS
Nonstop5h 47mUnited Airlines
Deal found 4/23$240
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Wed 5/156:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Sat 5/253:07 pmSFO - BOS
Nonstop5h 47mUnited Airlines
Deal found 4/23$245
Pick Dates
Fri 5/176:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Sat 5/2511:05 amSFO - BOS
Nonstop5h 54mUnited Airlines
Deal found 4/23$258
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Direct flights from Boston to San Francisco on United Airlines

Discover the cheapest flight options specifically offered by United Airlines for travel from Boston to San Francisco. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,086,534 searches. The data was last updated on April 24, 2024.
Sat 9/146:00 amBOS - SFO
Nonstop6h 30mUnited Airlines
Sat 9/2111:20 pmSFO - BOS
Nonstop5h 48mUnited Airlines
Deal found 4/23$235
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Wed 5/156:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Sat 5/253:07 pmSFO - BOS
Nonstop5h 47mUnited Airlines
Deal found 4/23$240
Pick Dates
Wed 5/156:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Sat 5/253:07 pmSFO - BOS
Nonstop5h 47mUnited Airlines
Deal found 4/23$245
Pick Dates

Last minute deals on Cheapflights

Explore last-minute flight deals on United Airlines for various destinations, including Boston to San Francisco. Discover attractive deals on flights departing soon. Keep an eye on the latest last-minute deals to find great opportunities for spontaneous travel. Please note that prices are subject to change and availability may vary. Data last updated April 24, 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 3,086,534 searches.
Tue 4/301:50 pmBOS - SFO
Nonstop6h 42mUnited Airlines
Mon 5/2011:30 pmSFO - BOS
1 stop8h 08mUnited Airlines
Deal found 4/23$342
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Tue 4/301:50 pmBOS - SFO
Nonstop6h 42mUnited Airlines
Mon 5/2011:15 pmSFO - BOS
Nonstop5h 53mUnited Airlines
Deal found 4/23$349
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Sat 5/45:54 pmBOS - SFO
Nonstop6h 42mUnited Airlines
Sun 5/121:25 pmSFO - BOS
Nonstop5h 49mUnited Airlines
Deal found 4/23$358
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One-way United Airlines flights to San Francisco from Boston

Search for one-way flight options from Boston to San Francisco specifically provided by United Airlines. Find affordable one-way fares from United Airlines and compare prices with other airlines. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,086,534 searches. The data was last updated on April 24, 2024.
Wed 5/156:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Deal found 4/23$100
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Fri 5/176:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Deal found 4/23$118
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Fri 8/307:20 pmBOS - SFO
1 stop8h 32mUnited Airlines
Deal found 4/23$159
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Average price of United Airlines flights from Boston to San Francisco

Plan your United Airlines flight from Boston to San Francisco by taking into account the cheapest months to travel. The average price of a one-way United Airlines flight from Boston to San Francisco is currently $126 while a round-trip flight costs $240. Price data was last updated on April 21, 2024.

Currently, the most affordable month to book a United Airlines flight from Boston to San Francisco in September, with an average price of $268. Conversely, traveling with United Airlines from Boston to San Francisco in June will be the most expensive, with an average cost of $384. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

January

$274

February

$281

March

$330

April

$306

May

$310

June

$384

July

$368

August

$298

September

$268

October

$268

November

$287

December

$268

Temperature and rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature and rainfall totals by month.

SFO

Temperature

51.8 - 62.6 °F

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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Fly from Boston to San Francisco on another airline
Consider alternative airlines that service the San Francisco area. Flight routes are based on user searches made on Cheapflights and were last updated on April 24, 2024.

JetBlue flights from Boston Logan Intl to San Francisco
Delta flights from Boston Logan Intl to San Francisco

See what others are saying about United Airlines

Read reviews and see what other travelers are saying about their experiences with United Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing United Airlines for your next flight. Reviews last updated April 24, 2024.
United Airlines
7.4
Good
11,272 reviews
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Overview

Boarding

7.7

Entertainment

7.1

Food

6.7

Crew

8.1

Comfort

7.2
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