What is the cheapest airline that flies from San Francisco to Allentown-Bethlehem?

Delta is the most popular carrier operating from San Francisco to Allentown-Bethlehem

What airlines fly to Allentown?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Allentown from San Francisco according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 10 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from San Francisco Airport to Allentown-Bethlehem Airport?

Prices for flights from San Francisco Airport to Allentown-Bethlehem Airport refresh daily.

How many operators does momondo search for flights from San Francisco Airport to Allentown-Bethlehem Airport?

As of December 2025, there are 3 operators available to choose from for flights from San Francisco Airport to Allentown-Bethlehem Airport.

How old do you have to be to fly from San Francisco Airport to Allentown-Bethlehem Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Allentown-Bethlehem Airport.

What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$159 Cheap Flights from San Francisco to Allentown in 2025/26

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11:05 pm - 12:05 pm

SFO

ABE

10h 00m1 stop

5:59 pm - 11:25 pm

ABE

SFO

8h 26m1 stop

$309Delta

Fri, Jan 30 - Sun, Feb 1

11:56 pm - 10:41 am

SFO

ABE

7h 45m1 stop

11:30 am - 5:36 pm

ABE

SFO

9h 06m1 stop

$429United Airlines

Tue, Jan 13 - Sat, Jan 17

9:00 am - 10:26 pm

SFO

ABE

10h 26m1 stop

7:30 am - 1:50 pm

ABE

SFO

9h 20m1 stop

$453American Airlines

Thu, Jan 15 - Thu, Jan 22

8:20 am - 9:05 pm

SFO

ABE

9h 45m1 stop

10:35 am - 6:38 pm

ABE

SFO

11h 03m1 stop

$459United Airlines

Fri, May 1 - Sun, May 3

1:00 pm - 10:41 am

SFO

ABE

18h 41m2 stops

11:30 am - 5:36 pm

ABE

SFO

9h 06m1 stop

$471United Airlines

Tue, Jan 13 - Sat, Jan 17

5:00 am - 4:30 pm

SFO

ABE

8h 30m1 stop

4:57 pm - 11:00 pm

ABE

SFO

9h 03m1 stop

$479United Airlines

Fri, Jan 2 - Tue, Jan 6

9:10 am - 10:26 pm

SFO

ABE

10h 16m2 stops

7:30 am - 1:50 pm

ABE

SFO

9h 20m1 stop

$484American Airlines

Thu, Jan 15 - Thu, Jan 22

6:50 pm - 4:22 pm

SFO

ABE

18h 32m2 stops

11:30 am - 5:36 pm

ABE

SFO

9h 06m1 stop

$486United Airlines

Sat, Jan 17 - Wed, Jan 21

4:20 pm - 10:41 am

SFO

ABE

15h 21m2 stops

4:57 pm - 11:00 pm

ABE

SFO

9h 03m1 stop

$497United Airlines

Wed, Jan 14 - Wed, Jan 21

1:00 pm - 10:41 am

SFO

ABE

18h 41m2 stops

6:15 am - 5:50 pm

ABE

SFO

14h 35m2 stops

$514United Airlines

Tue, Jan 13 - Sat, Jan 17

United Airlines flights from San Francisco to Allentown

Our best United Airlines deals on San Francisco to Allentown flight tickets

United Airlines

Jan 13

SFO11:56 pmSan Francisco

7h 45m

1 stop

ABE10:41 amAllentown-Bethlehem

Jan 17

ABE11:30 amAllentown-Bethlehem

9h 06m

1 stop

SFO5:36 pmSan Francisco

$429

Find similar

United Airlines

May 1

SFO8:20 amSan Francisco

9h 45m

1 stop

ABE9:05 pmAllentown-Bethlehem

May 3

ABE10:35 amAllentown-Bethlehem

11h 03m

1 stop

SFO6:38 pmSan Francisco

$459

Find similar

United Airlines

Jan 13

SFO1:00 pmSan Francisco

18h 41m

2 stops

ABE10:41 amAllentown-Bethlehem

Jan 17

ABE11:30 amAllentown-Bethlehem

9h 06m

1 stop

SFO5:36 pmSan Francisco

$471

Find similar

American Airlines flights from San Francisco to Allentown

Our best American Airlines deals on San Francisco to Allentown flight tickets

American Airlines

Jan 15

SFO9:00 amSan Francisco

10h 26m

1 stop

ABE10:26 pmAllentown-Bethlehem

Jan 22

ABE7:30 amAllentown-Bethlehem

9h 20m

1 stop

SFO1:50 pmSan Francisco

$453

Find similar

American Airlines

Jan 15

SFO9:10 amSan Francisco

10h 16m

2 stops

ABE10:26 pmAllentown-Bethlehem

Jan 22

ABE7:30 amAllentown-Bethlehem

9h 20m

1 stop

SFO1:50 pmSan Francisco

$484

Find similar

American Airlines

Apr 23

SFO10:12 amSan Francisco

11h 03m

2 stops

ABE12:15 amAllentown-Bethlehem

Apr 27

ABE5:51 pmAllentown-Bethlehem

8h 01m

1 stop

SFO10:52 pmSan Francisco

$575

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Fri 1/30

11:05 pm-12:05 pm

1 stop10h 00m

Allentown-Bethlehem

Sun 2/1

5:59 pm-11:25 pm

1 stop8h 26m

$309

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Tue 1/13

11:56 pm-10:41 am

1 stop7h 45m

Allentown-Bethlehem

Sat 1/17

11:30 am-5:36 pm

1 stop9h 06m

$429

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Thu 1/15

9:00 am-10:26 pm

1 stop10h 26m

Allentown-Bethlehem

Thu 1/22

7:30 am-1:50 pm

1 stop9h 20m

$453

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Fri 5/1

8:20 am-9:05 pm

1 stop9h 45m

Allentown-Bethlehem

Sun 5/3

10:35 am-6:38 pm

1 stop11h 03m

$459

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Tue 1/13

1:00 pm-10:41 am

2 stops18h 41m

Allentown-Bethlehem

Sat 1/17

11:30 am-5:36 pm

1 stop9h 06m

$471

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Fri 1/2

5:00 am-4:30 pm

1 stop8h 30m

Allentown-Bethlehem

Tue 1/6

4:57 pm-11:00 pm

1 stop9h 03m

$479

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Thu 1/15

9:10 am-10:26 pm

2 stops10h 16m

Allentown-Bethlehem

Thu 1/22

7:30 am-1:50 pm

1 stop9h 20m

$484

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Sat 1/17

6:50 pm-4:22 pm

2 stops18h 32m

Allentown-Bethlehem

Wed 1/21

11:30 am-5:36 pm

1 stop9h 06m

$486

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Wed 1/14

4:20 pm-10:41 am

2 stops15h 21m

Allentown-Bethlehem

Wed 1/21

4:57 pm-11:00 pm

1 stop9h 03m

$497

San FranciscoAllentown

SFO - ABE

SFOABE

San Francisco

Tue 1/13

1:00 pm-10:41 am

2 stops18h 41m

Allentown-Bethlehem

Sat 1/17

6:15 am-5:50 pm

2 stops14h 35m

$514

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How to get the cheapest flight ticket from San Francisco to Allentown

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Allentown?

The month of January is, on average, the cheapest month to fly to Allentown from San Francisco, with most prices found around $298. If you aren’t able to travel to Allentown during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $368.

What is the cheapest day to depart on your flight to Allentown?

The cheapest day to depart from San Francisco to Allentown is on a Tuesday when prices can be found for as low as $450. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Sunday is $584.

What is the cheapest time of day to depart on your flight to Allentown?

At noon is the cheapest time of day to fly from San Francisco to Allentown when you can find flight prices for as low as $464. Flying to Allentown at noon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $517.

How have San Francisco to Allentown flight prices changed over time?

As of December 2025, prices for San Francisco to Allentown flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Allentown

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Allentown according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Francisco to Allentown (SFO to ABE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Allentown

Fastest flight time	7h 26m
Direct flights	None

The fastest flight from San Francisco to Allentown takes 7h 26m

There are no direct flights from San Francisco to Allentown. There are no popular flight routes from San Francisco to Allentown.

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How far is San Francisco to Allentown-Bethlehem by plane?
The distance between San Francisco and Allentown-Bethlehem is about 2489.6 mi. 7h 26m is a normal flight duration for this route.
When did momondo last update prices for flights from San Francisco Airport to Allentown-Bethlehem Airport?
Prices for flights from San Francisco Airport to Allentown-Bethlehem Airport refresh daily.
How many operators does momondo search for flights from San Francisco Airport to Allentown-Bethlehem Airport?
As of December 2025, there are 3 operators available to choose from for flights from San Francisco Airport to Allentown-Bethlehem Airport.
How old do you have to be to fly from San Francisco Airport to Allentown-Bethlehem Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Francisco to Allentown?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to Allentown is American Airlines (66% of total bookings). The next most popular airlines are Delta (19%) and United Airlines (15%).

Best airlines flying from San Francisco to Allentown

Compare and see reviews for airlines that fly from San Francisco to Allentown with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $289	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Delta	PriceFrom $308	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
United Airlines	PriceFrom $338	Free Cancellation	Rating 7.4 9,091 reviews	Search United Airlines flights

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Why should I use momondo to find a flight deal from San Francisco to Allentown?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Allentown. momondo saves you time and could save you money on your trip.

Can I find flights from San Francisco to Allentown with flexible booking policies on momondo?

All flight searches from San Francisco to Allentown on momondo can be filtered to show those which offer flexible booking policies.

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I’m not ready to book a flight from San Francisco to Allentown right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to Allentown flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.