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$143+ Cheap flights from San Francisco to Allentown (SFO - ABE)

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ABE
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from San Francisco to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Allentown (ABE). 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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$307
(Delta)

One-way from

$143
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$496
Provider with most accurate pricing for San Francisco-Allentown-Bethlehem flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Allentown-Bethlehem flights.
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From San Francisco to Allentown-Bethlehem
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One-way flight from San Francisco to Allentown-Bethlehem
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Highest demand for flights based on searches. 13% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San Francisco to Allentown

Cheapest flights from San Francisco to Allentown
Explore the most affordable flight options available from San Francisco to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/311:43 amSFO - ABE
1 stop8h 12mDelta
Wed 6/45:50 pmABE - SFO
1 stop8h 08mDelta
Deal found 4/27$307
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/510:15 amSFO - ABE
2 stops11h 05mAmerican Airlines
Tue 6/176:15 amABE - SFO
2 stops12h 33mAmerican Airlines
Deal found 4/28$335
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/510:45 pmSFO - ABE
1 stop20h 10mUnited Airlines
Tue 6/176:30 amABE - SFO
1 stop8h 09mUnited Airlines
Deal found 4/28$592
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:33 pmSFO - ABE
2 stops22h 42mMultiple Airlines
Sat 5/176:00 amABE - SFO
2 stops35h 03mMultiple Airlines
Deal found 4/28$746

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to Allentown 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 April 30, 2025.
Use the filters below to find and compare flights from San Francisco to Allentown that are best for you.

Fly from

San Francisco

Fly to

Allentown

Route

Depart

Return

Price

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Tue 6/3

11:43 am-10:55 pm

1 stop8h 12m

Allentown-Bethlehem

Wed 6/4

5:50 pm-10:58 pm

1 stop8h 08m

$307

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Thu 6/5

10:15 am-12:20 am

2 stops11h 05m

Allentown-Bethlehem

Tue 6/17

6:15 am-3:48 pm

2 stops12h 33m

$335

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Thu 6/5

10:45 pm-9:55 pm

1 stop20h 10m

Allentown-Bethlehem

Tue 6/17

6:30 am-11:39 am

1 stop8h 09m

$592

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Tue 5/13

12:33 pm-2:15 pm

2 stops22h 42m

Allentown-Bethlehem

Sat 5/17

6:00 am-2:03 pm

2 stops35h 03m

$746

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Wed 5/28

6:15 am-5:06 pm

1 stop7h 51m

$154

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Wed 5/28

10:10 am-12:40 am

2 stops11h 30m

$159

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Mon 5/12

8:30 am-9:45 pm

1 stop10h 15m

$290

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Sat 5/3

6:09 pm-10:25 pm

3 stops25h 16m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from San Francisco to Allentown

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 San Francisco to Allentown in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 San Francisco-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Allentown flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Allentown 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 San Francisco-Allentown 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 San Francisco to Allentown

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

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

Currently, February is the cheapest month in which you can book a flight from San Francisco to Allentown (average of $292). Flying from San Francisco to Allentown in December is currently the most expensive (average of $395). 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 SFO to ABE?

Find hourly flight availability from San Francisco to Allentown. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

When flying from San Francisco to Allentown, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 11% versus a flight in the morning.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Allentown when rainfall is around 2.7 in.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated April 30, 2025.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

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

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

    Our cheapest airline available from San Francisco to Allentown is Delta. Our recent data shows that you can find tickets from as low as $307 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $335 and $592 round-trip. Delta is 39% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $154. American Airlines flights start at $159 while deals on United Airlines start at $319 one-way.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Allentown (average of $292). Flying from San Francisco to Allentown in December is currently the most expensive (average of $395). 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

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Top 3 airlines flying from San Francisco to Allentown

Discover the top 3 airlines that operate flights from San Francisco to Allentown. 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$273Average$492FlexibilityNo cancel feeOn-time71%
DeltaCheapest$326Average$592FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$413Average$579FlexibilityNo cancel feeOn-time69%

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