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Allentown

$145+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ABE
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
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 septiembre 17, 2025.

Round-trip from

$309
(Delta)

One-way from

$145
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$518
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. 12% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 17, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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.
mar. 10/76:10 amSFO - ABE
1 stop8h 10mDelta
mié. 10/296:00 pmABE - SFO
1 stop9h 05mDelta
Deal found 9/14$309
This United Airlines deal was found by Cheapflights users on 9/17. 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.
mié. 10/811:00 pmSFO - ABE
1 stop8h 38mUnited Airlines
sáb. 10/115:28 pmABE - SFO
1 stop8h 03mUnited Airlines
Deal found 9/17$325
This Delta deal was found by Cheapflights users on 9/14. 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.
mié. 10/86:10 amSFO - ABE
1 stop8h 10mDelta
lun. 10/276:00 pmABE - SFO
1 stop9h 05mDelta
Deal found 9/14$333
This Delta deal was found by Cheapflights users on 9/14. 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.
vie. 10/310:50 pmSFO - ABE
1 stop10h 14mDelta
mar. 10/286:00 pmABE - SFO
1 stop9h 05mDelta
Deal found 9/14$339
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/410:49 amSFO - ABE
1 stop25h 53mMultiple Airlines
dom. 10/267:30 amABE - SFO
2 stops36h 35mMultiple Airlines
Deal found 9/14$347
This Delta deal was found by Cheapflights users on 9/14. 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.
mié. 10/86:10 amSFO - ABE
1 stop8h 10mDelta
mar. 10/286:00 pmABE - SFO
2 stops16h 25mDelta
Deal found 9/14$371
This Delta deal was found by Cheapflights users on 9/14. 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.
mar. 10/76:10 amSFO - ABE
1 stop8h 10mDelta
lun. 10/276:00 pmABE - SFO
2 stops16h 25mDelta
Deal found 9/14$372
This Delta deal was found by Cheapflights users on 9/14. 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.
sáb. 10/46:15 amSFO - ABE
1 stop8h 16mDelta
mar. 10/286:00 pmABE - SFO
2 stops16h 25mDelta
Deal found 9/14$377
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/410:49 amSFO - ABE
1 stop25h 53mMultiple Airlines
lun. 10/278:00 amABE - SFO
2 stops40h 22mMultiple Airlines
Deal found 9/14$378
This Delta deal was found by Cheapflights users on 9/14. 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.
mié. 10/86:10 amSFO - ABE
1 stop8h 10mDelta
mié. 10/296:00 pmABE - SFO
2 stops16h 25mDelta
Deal found 9/14$381
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/410:49 amSFO - ABE
1 stop25h 53mMultiple Airlines
jue. 10/306:30 amABE - SFO
2 stops37h 25mMultiple Airlines
Deal found 9/14$385

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 septiembre 17, 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

mar. 10/7

6:10 am-5:20 pm

1 stop8h 10m

Allentown-Bethlehem

mar. 10/28

6:00 am-1:35 pm

1 stop10h 35m

$309

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

mié. 10/8

11:00 pm-10:38 am

1 stop8h 38m

Allentown-Bethlehem

sáb. 10/11

5:28 pm-10:31 pm

1 stop8h 03m

$325

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

vie. 10/3

10:50 pm-12:04 pm

1 stop10h 14m

Allentown-Bethlehem

mar. 10/28

6:00 pm-12:05 am

1 stop9h 05m

$339

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

vie. 10/3

10:50 pm-12:04 pm

1 stop10h 14m

Allentown-Bethlehem

lun. 10/27

6:00 pm-12:05 am

1 stop9h 05m

$339

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

sáb. 10/4

6:15 am-5:31 pm

1 stop8h 16m

Allentown-Bethlehem

sáb. 10/25

12:46 pm-7:48 pm

1 stop10h 02m

$339

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

mar. 10/7

6:10 am-5:20 pm

1 stop8h 10m

Allentown-Bethlehem

mié. 10/29

6:00 pm-7:25 am

2 stops16h 25m

$357

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

mié. 10/8

6:10 am-5:20 pm

1 stop8h 10m

Allentown-Bethlehem

mar. 10/28

6:00 pm-7:25 am

2 stops16h 25m

$371

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

mar. 10/7

6:10 am-5:20 pm

1 stop8h 10m

Allentown-Bethlehem

sáb. 10/25

6:00 pm-7:25 am

2 stops16h 25m

$377

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

mar. 10/7

6:10 am-5:20 pm

1 stop8h 10m

Allentown-Bethlehem

vie. 10/24

6:00 pm-7:25 am

2 stops16h 25m

$387

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

vie. 10/3

10:50 pm-12:04 pm

1 stop10h 14m

Allentown-Bethlehem

sáb. 10/25

6:00 pm-7:25 am

2 stops16h 25m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 20 results
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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 $289). Flying from San Francisco to Allentown in December is currently the most expensive (average of $383). 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 septiembre 17, 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.

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 septiembre 17, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from San Francisco to Allentown by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

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

    Departing from San Francisco to Allentown will take you 8h 10m. The distance between San Francisco and Allentown is about 2493 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from San Francisco to Allentown is American Airlines. Our recent data shows that you can find tickets from as low as $289 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $326 and $413 round-trip. American Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $289). Flying from San Francisco to Allentown in December is currently the most expensive (average of $383). 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$289Average$490FlexibilityNo cancel feeOn-time71%
DeltaCheapest$326Average$453FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$413Average$568FlexibilityNo cancel feeOn-time69%

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