HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Allentown

$169+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ABE
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Allentown 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 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 June 12, 2025.

Round-trip from

$347
(Delta)

One-way from

$169
(Delta)

Popular in

December

Cheapest in

August

Average price

$633
From San Francisco to Allentown-Bethlehem
Search Deals
One-way flight from San Francisco to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 8/2711:35 amSFO - ABE
1 stop8h 04mDelta
Tue 9/26:00 amABE - SFO
2 stops14h 17mDelta
Deal found 6/10$347
This American Airlines deal was found by Cheapflights users on 6/11. 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 12/312:27 amSFO - ABE
1 stop7h 19mAmerican Airlines
Wed 12/101:44 pmABE - SFO
1 stop8h 26mAmerican Airlines
Deal found 6/11$367
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Sat 7/126:14 pmSFO - ABE
2 stops24h 46mMultiple Airlines
Sun 7/208:17 pmABE - SFO
2 stops29h 36mMultiple Airlines
Deal found 6/10$481
This United Airlines deal was found by Cheapflights users on 6/11. 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 12/410:45 pmSFO - ABE
2 stops18h 58mUnited Airlines
Wed 12/106:44 amABE - SFO
1 stop9h 40mUnited Airlines
Deal found 6/11$586

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 June 12, 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

Wed 8/27

11:35 am-10:39 pm

1 stop8h 04m

Allentown-Bethlehem

Tue 9/2

6:00 am-5:17 pm

2 stops14h 17m

$347

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Wed 12/3

12:27 am-10:46 am

1 stop7h 19m

Allentown-Bethlehem

Wed 12/10

1:44 pm-7:10 pm

1 stop8h 26m

$367

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Sat 7/12

6:14 pm-10:00 pm

2 stops24h 46m

Allentown-Bethlehem

Sun 7/20

8:17 pm-10:53 pm

2 stops29h 36m

$481

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Thu 12/4

10:45 pm-8:43 pm

2 stops18h 58m

Allentown-Bethlehem

Wed 12/10

6:44 am-1:24 pm

1 stop9h 40m

$586

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Wed 8/27

11:35 am-10:39 pm

1 stop8h 04m

$169

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Sat 7/12

5:00 am-5:00 pm

1 stop9h 00m

$219

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Sat 7/12

6:14 pm-10:00 pm

2 stops24h 46m

$273

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Tue 8/26

7:00 am-9:44 pm

2 stops11h 44m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 12, 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 June 12, 2025.
Read through reviews of airlines operating flights from San Francisco to Allentown, such as Delta, United Airlines and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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 $347 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $367 and $586 round-trip. Delta is 29% 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 $169. United Airlines flights start at $219 while deals on American Airlines start at $308 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

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.

Other flights to Allentown

Explore flights to Allentown departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 12, 2025.
Orlando to Allentown flights
Denver to Allentown flights
Sarasota to Allentown flights
Myrtle Beach to Allentown flights
Melbourne to Allentown flights
Fort Lauderdale to Allentown flights
Allentown to Nashville flights
Allentown to Denver flights
Allentown to Myrtle Beach flights
Allentown to Orlando Airport flights
Allentown to Punta Gorda flights
Allentown to Fort Lauderdale flights
Allentown to Orlando Sanford Intl Airport flights
Allentown to Tampa flights
Allentown to Sarasota flights
Allentown to Melbourne, Florida flights
Allentown to Nashville flights
Allentown to Myrtle Beach flights
Allentown to Fort Lauderdale flights
Allentown to Philadelphia flights
Allentown to Sarasota flights
Allentown to Orlando Airport flights
Allentown to Punta Gorda flights
Allentown to Tampa flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$276Average$487FlexibilityNo cancel feeOn-time71%
DeltaCheapest$326Average$463FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$413Average$568FlexibilityNo cancel feeOn-time69%

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.