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

Delta and United Airlines are the most popular carriers 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 48% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 9 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 September 2026, there is 1 operator 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.

$206 Cheap Flights from San Francisco to Allentown in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Allentown

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:42 pm - 9:37 amSFO San Francisco-ABE Allentown-Bethlehem

7h 55m1 stop Chicago O'Hare Intl

10:37 am - 6:24 pmABE Allentown-Bethlehem-SFO San Francisco

10h 47m1 stop Chicago O'Hare Intl

$393United Airlines

Fri, Oct 16 - Sat, Oct 17

6:00 am - 5:13 pmSFO San Francisco-ABE Allentown-Bethlehem

8h 13m1 stop Atlanta Hartsfield-Jackson

5:58 pm - 11:59 pmABE Allentown-Bethlehem-SFO San Francisco

9h 01m1 stop Atlanta Hartsfield-Jackson

$399Delta

Thu, Dec 3 - Mon, Dec 7

6:00 am - 5:16 pmSFO San Francisco-ABE Allentown-Bethlehem

8h 16m1 stop Atlanta Hartsfield-Jackson

2:30 pm - 10:40 pmABE Allentown-Bethlehem-SFO San Francisco

11h 10m1 stop Atlanta Hartsfield-Jackson

$399Delta

Thu, Oct 29 - Sat, Oct 31

6:00 am - 5:12 pmSFO San Francisco-ABE Allentown-Bethlehem

8h 12m1 stop Atlanta Hartsfield-Jackson

1:00 pm - 7:37 pmABE Allentown-Bethlehem-SFO San Francisco

9h 37m1 stop Atlanta Hartsfield-Jackson

$399Delta

Fri, Jan 29 - Sun, Jan 31

6:10 am - 5:02 pmSFO San Francisco-ABE Allentown-Bethlehem

7h 52m1 stop Chicago O'Hare Intl

5:43 pm - 12:30 amABE Allentown-Bethlehem-SFO San Francisco

9h 47m1 stop Chicago O'Hare Intl

$399United Airlines

Sat, Oct 17 - Sat, Oct 24

6:00 am - 5:13 pmSFO San Francisco-ABE Allentown-Bethlehem

8h 13m1 stop Atlanta Hartsfield-Jackson

5:58 pm - 11:59 pmABE Allentown-Bethlehem-SFO San Francisco

9h 01m1 stop Atlanta Hartsfield-Jackson

$399Delta

Tue, Dec 8 - Sun, Dec 13

6:00 am - 5:16 pmSFO San Francisco-ABE Allentown-Bethlehem

8h 16m1 stop Atlanta Hartsfield-Jackson

6:03 pm - 11:56 pmABE Allentown-Bethlehem-SFO San Francisco

8h 53m1 stop Atlanta Hartsfield-Jackson

$399Delta

Thu, Oct 29 - Sun, Nov 1

6:00 am - 5:16 pmSFO San Francisco-ABE Allentown-Bethlehem

8h 16m1 stop Atlanta Hartsfield-Jackson

6:00 pm - 11:58 pmABE Allentown-Bethlehem-SFO San Francisco

8h 58m1 stop Atlanta Hartsfield-Jackson

$399Delta

Sat, Nov 7 - Mon, Nov 9

7:10 am - 6:17 pmSFO San Francisco-ABE Allentown-Bethlehem

8h 07m1 stop Chicago O'Hare Intl

6:47 pm - 12:30 amABE Allentown-Bethlehem-SFO San Francisco

8h 43m1 stop Chicago O'Hare Intl

$419American Airlines

Fri, Oct 30 - Sat, Oct 31

6:00 am - 6:14 pmSFO San Francisco-ABE Allentown-Bethlehem

9h 14m1 stop Chicago O'Hare Intl

6:44 pm - 12:30 amABE Allentown-Bethlehem-SFO San Francisco

8h 46m1 stop Chicago O'Hare Intl

$419American Airlines

Sat, Oct 17 - Fri, Oct 23

Cheap last minute flights

Enter your travel dates to find the best prices.

9:53 pm - 11:05 amSFO San Francisco-ABE Allentown-Bethlehem

10h 12m1 stop Charlotte Douglas

5:10 pm - 11:56 pmABE Allentown-Bethlehem-SFO San Francisco

9h 46m1 stop Chicago O'Hare Intl

$579American Airlines

Sat, Sep 26 - Tue, Sep 29

11:33 am - 10:16 pmSFO San Francisco-ABE Allentown-Bethlehem

7h 43m1 stop Atlanta Hartsfield-Jackson

6:08 pm - 11:57 pmABE Allentown-Bethlehem-SFO San Francisco

8h 49m1 stop Atlanta Hartsfield-Jackson

$579Delta

Sat, Sep 26 - Wed, Sep 30

10:22 am - 11:22 pmSFO San Francisco-ABE Allentown-Bethlehem

10h 00m2 stops Los Angeles Charlotte Douglas

2:25 pm - 8:08 pmABE Allentown-Bethlehem-SFO San Francisco

8h 43m1 stop Charlotte Douglas

$608American Airlines

Sat, Sep 26 - Tue, Sep 29

9:29 am - 11:22 pmSFO San Francisco-ABE Allentown-Bethlehem

10h 53m2 stops Los Angeles Charlotte Douglas

5:10 pm - 11:56 pmABE Allentown-Bethlehem-SFO San Francisco

9h 46m1 stop Chicago O'Hare Intl

$608American Airlines

Sat, Sep 26 - Wed, Sep 30

10:35 pm - 9:35 amSFO San Francisco-ABE Allentown-Bethlehem

8h 00m1 stop Chicago O'Hare Intl

10:37 am - 3:24 pmABE Allentown-Bethlehem-SFO San Francisco

7h 47m1 stop Chicago O'Hare Intl

$613United Airlines

Fri, Sep 25 - Sat, Sep 26

8:00 am - 10:18 pmSFO San Francisco-ABE Allentown-Bethlehem

11h 18m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

5:45 am - 1:55 pmABE Allentown-Bethlehem-SFO San Francisco

11h 10m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

$637American Airlines

Sat, Sep 26 - Tue, Sep 29

10:46 pm - 12:25 pmSFO San Francisco-ABE Allentown-Bethlehem

10h 39m2 stops Chicago O'Hare Intl Charlotte Douglas

2:25 pm - 8:08 pmABE Allentown-Bethlehem-SFO San Francisco

8h 43m1 stop Charlotte Douglas

$658American Airlines

Fri, Sep 25 - Sat, Sep 26

10:46 pm - 12:25 pmSFO San Francisco-ABE Allentown-Bethlehem

10h 39m2 stops Chicago O'Hare Intl Charlotte Douglas

2:25 pm - 11:28 pmABE Allentown-Bethlehem-SFO San Francisco

12h 03m2 stops Charlotte Douglas Dallas/Fort Worth

$687American Airlines

Fri, Sep 25 - Sat, Sep 26

10:35 pm - 9:35 amSFO San Francisco-ABE Allentown-Bethlehem

8h 00m1 stop Chicago O'Hare Intl

5:43 pm - 12:30 amABE Allentown-Bethlehem-SFO San Francisco

9h 47m1 stop Chicago O'Hare Intl

$699United Airlines

Fri, Sep 25 - Sun, Oct 4

10:35 pm - 9:35 amSFO San Francisco-ABE Allentown-Bethlehem

8h 00m1 stop Chicago O'Hare Intl

5:43 pm - 10:59 pmABE Allentown-Bethlehem-SFO San Francisco

8h 16m1 stop Chicago O'Hare Intl

$749United Airlines

Fri, Sep 25 - Tue, Sep 29

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Delta flights from San Francisco to Allentown

Our best Delta deals on San Francisco to Allentown flight tickets

Delta

Oct 7

SFO6:00 amSan Francisco

8h 16m

1 stop

ABE5:16 pmAllentown-Bethlehem

Oct 14

ABE6:03 pmAllentown-Bethlehem

8h 53m

1 stop

SFO11:56 pmSan Francisco

$439

Delta

Nov 6

SFO6:00 amSan Francisco

8h 16m

1 stop

ABE5:16 pmAllentown-Bethlehem

Nov 8

ABE6:03 pmAllentown-Bethlehem

8h 53m

1 stop

SFO11:56 pmSan Francisco

$449

Delta

Oct 26

SFO10:25 pmSan Francisco

10h 40m

1 stop

ABE12:05 pmAllentown-Bethlehem

Oct 30

ABE6:03 pmAllentown-Bethlehem

8h 53m

1 stop

SFO11:56 pmSan Francisco

$467

American Airlines flights from San Francisco to Allentown

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

American Airlines

Oct 30

SFO7:10 amSan Francisco

8h 07m

1 stop

ABE6:17 pmAllentown-Bethlehem

Oct 31

ABE6:47 pmAllentown-Bethlehem

8h 43m

1 stop

SFO12:30 amSan Francisco

$419

American Airlines

Oct 9

SFO1:27 pmSan Francisco

8h 01m

1 stop

ABE12:28 amAllentown-Bethlehem

Oct 31

ABE6:10 amAllentown-Bethlehem

9h 17m

1 stop

SFO12:27 pmSan Francisco

$459

American Airlines

Oct 23

SFO10:03 pmSan Francisco

10h 15m

1 stop

ABE11:18 amAllentown-Bethlehem

Oct 25

ABE6:47 pmAllentown-Bethlehem

8h 43m

1 stop

SFO12:30 amSan Francisco

$499

momondo Fare Finder

Use the filters below to find and compare flights from San Francisco to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Fri 10/16

10:42 pm-9:37 am

1 stop7h 55m

Allentown-Bethlehem

Sat 10/17

10:37 am-6:24 pm

1 stop10h 47m

$393

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Thu 12/3

6:00 am-5:13 pm

1 stop8h 13m

Allentown-Bethlehem

Mon 12/7

5:58 pm-11:59 pm

1 stop9h 01m

$399

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Thu 10/29

6:00 am-5:16 pm

1 stop8h 16m

Allentown-Bethlehem

Sat 10/31

2:30 pm-10:40 pm

1 stop11h 10m

$399

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Fri 1/29

6:00 am-5:12 pm

1 stop8h 12m

Allentown-Bethlehem

Sun 1/31

1:00 pm-7:37 pm

1 stop9h 37m

$399

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Sat 10/17

6:10 am-5:02 pm

1 stop7h 52m

Allentown-Bethlehem

Sat 10/24

5:43 pm-12:30 am

1 stop9h 47m

$399

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Tue 12/8

6:00 am-5:13 pm

1 stop8h 13m

Allentown-Bethlehem

Sun 12/13

5:58 pm-11:59 pm

1 stop9h 01m

$399

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Thu 10/29

6:00 am-5:16 pm

1 stop8h 16m

Allentown-Bethlehem

Sun 11/1

6:03 pm-11:56 pm

1 stop8h 53m

$399

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Sat 11/7

6:00 am-5:16 pm

1 stop8h 16m

Allentown-Bethlehem

Mon 11/9

6:00 pm-11:58 pm

1 stop8h 58m

$399

Quickest round-trip

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Fri 10/30

7:10 am-6:17 pm

1 stop8h 07m

Allentown-Bethlehem

Sat 10/31

6:47 pm-12:30 am

1 stop8h 43m

$419

San FranciscoAllentown

SFO San Francisco - ABE Allentown-Bethlehem

SFOABE

San Francisco

Sat 10/17

6:00 am-6:14 pm

1 stop9h 14m

Allentown-Bethlehem

Fri 10/23

6:44 pm-12:30 am

1 stop8h 46m

$419

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 September is, on average, the cheapest month to fly to Allentown from San Francisco, with most prices found around $0. If you aren’t able to travel to Allentown during the month of September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $0.

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

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

Best Price Found	$206
Fastest flight time	7h 21m
Direct flights	None

The best one-way flight to Allentown from San Francisco in the past 72 hours is $206. The best round-trip flight deal from San Francisco to Allentown found on momondo in the last 72 hours is $393.

The fastest flight from San Francisco to Allentown takes 7h 21m

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

Search flight deals

Frequently asked questions about flying from San Francisco to Allentown

How far is San Francisco to Allentown-Bethlehem by plane?
The distance between San Francisco and Allentown-Bethlehem is about 2489.2 mi. 7h 21m 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 September 2026, there is 1 operator 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 (100% of total bookings).

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 7.0 12,073 reviews		Search American Airlines flights

Lehighton

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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.

How can momondo help me find flights from San Francisco to Allentown?

Once all potential San Francisco to Allentown flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.