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$169+ Cheap flights from Allentown to San Francisco (ABE - 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SFO
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find flight deals from Allentown to San Francisco

Cheapest flights from Allentown to San Francisco
Explore the most affordable flight options available from Allentown to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/26. 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.
Wed 11/265:22 pmABE - SFO
1 stop9h 36mUnited Airlines
Mon 12/110:40 pmSFO - ABE
1 stop10h 12mUnited Airlines
Deal found 10/26$309
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:10 amABE - SFO
1 stop9h 21mAmerican Airlines
Mon 12/157:27 amSFO - ABE
2 stops12h 31mAmerican Airlines
Deal found 10/26$342
This Delta deal was found by Cheapflights users on 10/28. 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 11/246:00 pmABE - SFO
1 stop8h 23mDelta
Wed 12/36:00 amSFO - ABE
1 stop7h 38mDelta
Deal found 10/28$368
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/111:00 pmABE - SFO
1 stop11h 22mUnited Airlines
Sat 11/156:00 amSFO - ABE
1 stop7h 47mUnited Airlines
Deal found 10/27$369
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:46 pmABE - SFO
2 stops12h 39mAmerican Airlines
Fri 11/1412:27 amSFO - ABE
1 stop10h 02mAmerican Airlines
Deal found 10/27$374
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:46 pmABE - SFO
1 stop11h 22mAmerican Airlines
Mon 12/111:18 pmSFO - ABE
2 stops10h 57mAmerican Airlines
Deal found 10/26$421
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/62:00 pmABE - SFO
1 stop10h 25mAmerican Airlines
Sun 11/911:50 pmSFO - ABE
1 stop10h 25mAmerican Airlines
Deal found 10/26$434
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:00 pmABE - SFO
1 stop8h 56mDelta
Sat 11/811:58 amSFO - ABE
1 stop7h 17mDelta
Deal found 10/26$439
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/41:46 pmABE - SFO
1 stop11h 22mAmerican Airlines
Sat 11/810:16 amSFO - ABE
2 stops9h 37mAmerican Airlines
Deal found 10/26$444

Cheap flight deals from Allentown to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(Delta)

One-way from

$169
(Delta)

Popular in

November

Cheapest in

May

Average price

$498
Provider with most accurate pricing for Allentown-Bethlehem-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Allentown-Bethlehem-San Francisco flights.
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From Allentown-Bethlehem to San Francisco
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One-way flight from Allentown-Bethlehem to San Francisco
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown 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 October 28, 2025.
Use the filters below to find and compare flights from Allentown to San Francisco that are best for you.

Fly from

Allentown

Fly to

San Francisco

Route

Depart

Return

Price

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Fri 1/23

5:58 pm-11:37 pm

1 stop8h 39m

San Francisco

Wed 1/28

6:00 am-5:18 pm

1 stop8h 18m

$309

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Wed 11/26

5:22 pm-11:58 pm

1 stop9h 36m

San Francisco

Mon 12/1

10:40 pm-11:52 am

1 stop10h 12m

$309

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Fri 1/23

5:58 pm-11:37 pm

1 stop8h 39m

San Francisco

Tue 2/3

11:40 am-10:50 pm

1 stop8h 10m

$309

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Sat 1/24

5:58 pm-11:37 pm

1 stop8h 39m

San Francisco

Tue 2/3

11:40 am-10:50 pm

1 stop8h 10m

$309

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Wed 2/4

5:58 pm-11:37 pm

1 stop8h 39m

San Francisco

Wed 2/11

6:00 am-5:18 pm

1 stop8h 18m

$349

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Fri 1/23

5:58 pm-11:37 pm

1 stop8h 39m

San Francisco

Mon 2/2

4:02 pm-12:07 pm

2 stops17h 05m

$357

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Mon 11/24

6:00 pm-11:23 pm

1 stop8h 23m

San Francisco

Wed 12/3

6:00 am-4:38 pm

1 stop7h 38m

$368

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Wed 2/4

5:58 pm-11:37 pm

1 stop8h 39m

San Francisco

Sun 2/8

6:00 am-5:18 pm

1 stop8h 18m

$374

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Sat 1/24

12:47 pm-8:25 pm

1 stop10h 38m

San Francisco

Fri 1/30

11:00 pm-12:07 pm

1 stop10h 07m

$404

AllentownSan Francisco

ABE - SFO

ABESFO

Allentown-Bethlehem

Wed 3/18

1:00 pm-9:46 pm

1 stop11h 46m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 20 results
1
2

Compare providers for flights from Allentown to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to San Francisco in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Allentown-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Allentown-San Francisco flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Allentown-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Allentown-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Allentown to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Allentown 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 Allentown to San Francisco

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

Currently, February is the cheapest month in which you can book a flight from Allentown to San Francisco (average of $114). Flying from Allentown to San Francisco in May is currently the most expensive (average of $187). 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.

What is the cheapest time of day to fly from ABE to SFO?

Find hourly flight availability from Allentown to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

One of the essential ways to save on airfare from Allentown to San Francisco is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 65% on airfare.

How much does it cost to fly round-trip from Allentown to San Francisco?

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 October 28, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Allentown to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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 Allentown to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Allentown to San Francisco?

    For as low as $309, Delta can have you in San Francisco from Allentown in 8h 39m. There are 2493 mi between Allentown and San Francisco. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Allentown to San Francisco round-trip?

    Delta, at $308, was found to be the cheapest airline from Allentown to San Francisco.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is currently priced 29% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Allentown 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 Allentown to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Allentown to San Francisco (average of $114). Flying from Allentown to San Francisco in May is currently the most expensive (average of $187). 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
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Watsonville
Sunnyvale
Santa Clara
Antioch
Manteca
Vallejo
Hollister
Vacaville
San Bruno
Foster City
Redwood City
Union City
Fairfield
Burlingame
Lodi

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Allentown to San Francisco

Discover the top 3 airlines that operate flights from Allentown 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$368FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$313Average$409FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$313Average$467FlexibilityNo cancel feeOn-time69%

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