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

BOS — SFO
May 3 — May 101

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 28, 2024.

Popular in

June

Cheapest in

January

Average price (all airlines)

$418

One-way from

$100

Round-trip from

$235
Highest demand for flights from Boston Logan Intl to San Francisco; 13% potential price increase.
Best time to find cheap flights from Boston Logan Intl to San Francisco; 2% potential price drop.
Average price for all Boston Logan Intl to San Francisco flights (one-way and round-trip).
Cheapest one-way United Airlines flight from Boston Logan Intl to San Francisco
Cheapest round-trip United Airlines flight from Boston Logan Intl to San Francisco
  • 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?

    8,739 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 2,991,349 searches. The data was last updated on April 28, 2024.
Thu 5/166:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Mon 5/2011:30 pmSFO - BOS
1 stop8h 08mUnited Airlines
Deal found 4/27$335
Sat 5/116:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Sat 5/183:00 pmSFO - BOS
Nonstop5h 49mUnited Airlines
Deal found 4/27$344
Sat 5/256:15 pmBOS - SFO
Nonstop6h 31mUnited Airlines
Sat 8/316:45 pmSFO - BOS
1 stop8h 12mUnited Airlines
Deal found 4/27$348

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 2,991,349 searches. The data was last updated on April 28, 2024.
Fri 9/136:00 amBOS - SFO
Nonstop6h 32mUnited Airlines
Mon 9/169:26 pmSFO - BOS
Nonstop5h 43mUnited Airlines
Deal found 4/27$235
Wed 8/286:00 amBOS - SFO
Nonstop6h 32mUnited Airlines
Mon 9/211:20 pmSFO - BOS
Nonstop5h 48mUnited Airlines
Deal found 4/27$274
Fri 7/126:00 amBOS - SFO
Nonstop6h 27mUnited Airlines
Sun 7/1411:20 pmSFO - BOS
Nonstop5h 48mUnited Airlines
Deal found 4/27$292

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 28, 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 2,991,349 searches.
Tue 5/75:54 pmBOS - SFO
Nonstop6h 42mUnited Airlines
Sat 8/316:45 pmSFO - BOS
1 stop8h 12mUnited Airlines
Deal found 4/27$352
Fri 5/39:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Tue 9/311:30 pmSFO - BOS
1 stop8h 26mUnited Airlines
Deal found 4/27$363
Tue 5/76:15 amBOS - SFO
Nonstop6h 42mUnited Airlines
Fri 5/1012:09 amSFO - BOS
1 stop7h 29mUnited Airlines
Deal found 4/27$377

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 2,991,349 searches. The data was last updated on April 28, 2024.
Sat 8/246:00 amBOS - SFO
Nonstop6h 30mUnited Airlines
Deal found 4/27$100
Sat 9/218:10 amBOS - SFO
Nonstop6h 32mUnited Airlines
Deal found 4/26$118
Wed 5/298:00 amBOS - SFO
2 stops12h 45mUnited Airlines
Deal found 4/27$174

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 $131 while a round-trip flight costs $267. 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 28, 2024.

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 28, 2024.
United Airlines
7.4
Good
11,221 reviews
Overview

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.2
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