San Francisco

$189+ Cheap flights from Lehigh Valley to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SFO
Apr 10 — Apr 171
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Lehigh Valley to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Lehigh Valley to San Francisco

Cheapest flights from Lehigh Valley to San Francisco
Explore the most affordable flight options available from Lehigh Valley to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This United Airlines deal was found by Cheapflights users on 3/6. 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 4/45:43 pm
ABE
-
SFO
1 stop9h 56m
United Airlines
Tue 4/710:50 pm
SFO
-
ABE
1 stop7h 58m
United Airlines
Deal found 3/6$349
This Delta deal was found by Cheapflights users on 3/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:40 pm
ABE
-
SFO
1 stop9h 35m
Delta
Tue 10/1311:45 pm
SFO
-
ABE
1 stop9h 19m
Delta
Deal found 3/5$353
This American Airlines deal was found by Cheapflights users on 3/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:18 pm
ABE
-
SFO
1 stop9h 40m
American Airlines
Wed 8/55:15 am
SFO
-
ABE
1 stop10h 50m
American Airlines
Deal found 3/6$386
This Delta deal was found by Cheapflights users on 3/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:40 pm
ABE
-
SFO
1 stop9h 22m
Delta
Tue 10/1311:45 pm
SFO
-
ABE
1 stop9h 19m
Delta
Deal found 3/5$408
This United Airlines deal was found by Cheapflights users on 3/8. 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 6/125:36 pm
ABE
-
SFO
1 stop11h 06m
United Airlines
Mon 6/1510:38 pm
SFO
-
ABE
1 stop8h 00m
United Airlines
Deal found 3/8$410
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:59 pm
ABE
-
SFO
1 stop10h 42m
Delta
Sat 5/1611:26 am
SFO
-
ABE
1 stop7h 52m
Delta
Deal found 3/9$414
This American Airlines deal was found by Cheapflights users on 3/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
ABE
-
SFO
1 stop9h 32m
American Airlines
Sat 8/225:15 am
SFO
-
ABE
1 stop10h 50m
American Airlines
Deal found 3/6$419
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:40 pm
ABE
-
SFO
1 stop9h 35m
Delta
Tue 7/1411:45 pm
SFO
-
ABE
1 stop9h 25m
Delta
Deal found 3/9$434
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:32 am
ABE
-
SFO
1 stop9h 17m
Delta
Tue 4/1411:39 pm
SFO
-
ABE
1 stop9h 33m
Delta
Deal found 3/6$438
This American Airlines deal was found by Cheapflights users on 3/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:00 am
ABE
-
SFO
1 stop8h 21m
American Airlines
Tue 8/45:22 am
SFO
-
ABE
1 stop10h 18m
American Airlines
Deal found 3/6$439
This United Airlines deal was found by Cheapflights users on 3/9. 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 6/15:36 pm
ABE
-
SFO
1 stop11h 06m
United Airlines
Mon 6/810:38 pm
SFO
-
ABE
1 stop8h 00m
United Airlines
Deal found 3/9$441

Find flight deals from Lehigh Valley to San Francisco

Keep the following information in mind while searching for Lehigh Valley to San Francisco flight deals. Data was last updated March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(United Airlines)

One-way from

$189
(Delta)

Popular in

December

Cheapest in

October

Average price

$437
Provider with most accurate pricing for Allentown-Bethlehem-San Francisco flight deals.
Provider most trusted by Cheapflights users for Allentown-Bethlehem-San Francisco flights.
From Lehigh Valley to San Francisco
One-way flight from Lehigh Valley to San Francisco
Highest demand for flights based on searches. 14% potential increase in price ($72 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lehigh Valley to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from Lehigh Valley to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Sat 5/2

10:35 am-6:38 pm

1 stop11h 03m

San Francisco

Mon 5/4

12:45 am-1:38 pm

1 stop9h 53m

$449

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Wed 9/2

10:38 am-6:24 pm

1 stop10h 46m

San Francisco

Sat 9/5

10:35 pm-10:06 am

1 stop8h 31m

$449

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Fri 4/10

5:43 pm-1:35 am

1 stop10h 52m

San Francisco

Tue 4/14

4:12 pm-9:48 am

2 stops14h 36m

$502
Quickest round-trip

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Sat 4/4

5:43 pm-12:39 am

1 stop9h 56m

San Francisco

Tue 4/7

10:50 pm-9:48 am

1 stop7h 58m

$514
Cheapest one-way
Quickest one-way

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Fri 8/21

6:30 am-11:41 am

1 stop8h 11m

$189

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Mon 4/20

5:59 pm-11:55 pm

1 stop8h 56m

$189

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Fri 4/17

5:59 pm-11:55 pm

1 stop8h 56m

$199

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Thu 4/23

9:00 am-12:27 am

2 stops42h 27m

$219

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Mon 4/27

5:59 pm-11:55 pm

1 stop8h 56m

$220

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Sat 3/21

12:51 pm-6:51 pm

1 stop9h 00m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Lehigh Valley to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Lehigh Valley with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Lehigh Valley to San Francisco

What is the cheapest month to book a flight from Lehigh Valley to San Francisco?

Currently, December is the cheapest month in which you can book a flight from Lehigh Valley to San Francisco (average of $256). Flying from Lehigh Valley to San Francisco in April is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated March 11, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Lehigh Valley to San Francisco by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Lehigh Valley to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to San Francisco from Lehigh Valley?

    If you book a flight to San Francisco from Lehigh Valley, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco.

  • How long is the flight from Lehigh Valley to San Francisco?

    Departing from Lehigh Valley to San Francisco will take you 11h 03m. There are 2493 mi between Lehigh Valley and San Francisco.

  • What are the cheapest airlines to fly from Lehigh Valley to San Francisco one-way?

    $143 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $168 and $195, respectively.

  • Can I find deals for flights from Lehigh Valley to San Francisco that include hotel bookings?

    Yes. In addition to deals on Lehigh Valley to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lehigh Valley to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lehigh Valley to San Francisco.

  • Can I find deals for business class flights from Lehigh Valley to San Francisco?

    Yes. Cheapflights offers flight deals from Lehigh Valley to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Lehigh Valley to San Francisco?

    Currently, December is the cheapest month in which you can book a flight from Lehigh Valley to San Francisco (average of $256). Flying from Lehigh Valley to San Francisco in April is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Clara
Santa Cruz
Livermore
Roseville
Watsonville
San Bruno
Sunnyvale
Vacaville
Turlock
San Carlos
San Ramon
Redwood City
Daly City
Rancho Cordova
San Lorenzo
Davis
Hollister
Manteca
Union City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Lehigh Valley to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Lehigh Valley to San Francisco

Discover the top 3 airlines that operate flights from Lehigh Valley to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$269Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$311Average$451FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$329Average$430FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.