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Cheap flights from Allentown to San Francisco from $128

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to San Francisco departing on 9/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Allentown to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:36 pm - 12:30 amABE  Allentown-Bethlehem-SFO San Francisco
9h 54m1 stop Chicago O'Hare Intl
United Airlines Logo
11:00 pm - 9:39 amSFO  San Francisco-ABE Allentown-Bethlehem
7h 39m1 stop Chicago O'Hare Intl
$379United Airlines
Tue, Sep 8 - Sat, Sep 12
United Airlines Logo
5:36 pm - 12:30 amABE  Allentown-Bethlehem-SFO San Francisco
9h 54m1 stop Chicago O'Hare Intl
United Airlines Logo
10:35 pm - 9:39 amSFO  San Francisco-ABE Allentown-Bethlehem
8h 04m1 stop Chicago O'Hare Intl
$379United Airlines
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
2:25 pm - 8:08 pmABE  Allentown-Bethlehem-SFO San Francisco
8h 43m1 stop Charlotte Douglas
American Airlines Logo
10:31 am - 10:17 pmSFO  San Francisco-ABE Allentown-Bethlehem
8h 46m1 stop Chicago O'Hare Intl
$379American Airlines
Sat, Sep 26 - Tue, Sep 29
American Airlines Logo
2:25 pm - 8:08 pmABE  Allentown-Bethlehem-SFO San Francisco
8h 43m1 stop Charlotte Douglas
American Airlines Logo
9:02 am - 10:18 pmSFO  San Francisco-ABE Allentown-Bethlehem
10h 16m1 stop Chicago O'Hare Intl
$379American Airlines
Sat, Sep 19 - Sat, Sep 26
American Airlines Logo
5:10 pm - 11:56 pmABE  Allentown-Bethlehem-SFO San Francisco
9h 46m1 stop Chicago O'Hare Intl
American Airlines Logo
9:02 am - 10:18 pmSFO  San Francisco-ABE Allentown-Bethlehem
10h 16m1 stop Chicago O'Hare Intl
$379American Airlines
Thu, Sep 24 - Mon, Sep 28
Multiple Airlines Logo
2:28 pm - 10:47 amABE  Allentown-Bethlehem-SFO San Francisco
23h 19m2 stops Orlando Denver Intl
Multiple Airlines Logo
6:04 am - 3:08 pmSFO  San Francisco-ABE Allentown-Bethlehem
30h 04m1 stop Denver Intl
$385Multiple Airlines
Sun, Sep 20 - Thu, Sep 24
Delta Logo
5:40 pm - 11:40 pmABE  Allentown-Bethlehem-SFO San Francisco
9h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 5:12 pmSFO  San Francisco-ABE Allentown-Bethlehem
8h 12m1 stop Atlanta Hartsfield-Jackson
$403Delta
Fri, Jan 1 - Mon, Jan 4
Delta Logo
6:04 pm - 11:58 pmABE  Allentown-Bethlehem-SFO San Francisco
8h 54m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 5:23 pmSFO  San Francisco-ABE Allentown-Bethlehem
8h 23m1 stop Atlanta Hartsfield-Jackson
$419Delta
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
5:36 pm - 10:55 pmABE  Allentown-Bethlehem-SFO San Francisco
8h 19m1 stop Chicago O'Hare Intl
United Airlines Logo
11:00 pm - 9:39 amSFO  San Francisco-ABE Allentown-Bethlehem
7h 39m1 stop Chicago O'Hare Intl
$427United Airlines
Wed, Sep 9 - Thu, Sep 10
Multiple Airlines Logo
2:28 pm - 10:22 amABE  Allentown-Bethlehem-SFO San Francisco
46h 54m2 stops Orlando Los Angeles Los Angeles
Multiple Airlines Logo
11:42 am - 3:08 pmSFO  San Francisco-ABE Allentown-Bethlehem
24h 26m1 stop Denver Intl
$472Multiple Airlines
Thu, Sep 10 - Thu, Sep 17

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United Airlines flights from Allentown to San Francisco

Our best United Airlines deals on Allentown to San Francisco flight tickets
United Airlines
Sep 9
ABE5:36 pmAllentown-Bethlehem
8h 19m
1 stop
SFO10:55 pmSan Francisco
Sep 10
SFO11:00 pmSan Francisco
7h 39m
1 stop
ABE9:39 amAllentown-Bethlehem
$427
United Airlines
Sep 5
ABE6:01 pmAllentown-Bethlehem
9h 29m
1 stop
SFO12:30 amSan Francisco
Sep 7
SFO10:35 pmSan Francisco
8h 04m
1 stop
ABE9:39 amAllentown-Bethlehem
$455
United Airlines
Sep 5
ABE6:01 pmAllentown-Bethlehem
9h 29m
1 stop
SFO12:30 amSan Francisco
Sep 7
SFO10:35 pmSan Francisco
8h 04m
1 stop
ABE9:39 amAllentown-Bethlehem
$461

American Airlines flights from Allentown to San Francisco

Our best American Airlines deals on Allentown to San Francisco flight tickets
American Airlines
Sep 2
ABE4:57 pmAllentown-Bethlehem
8h 43m
1 stop
SFO10:40 pmSan Francisco
Sep 5
SFO7:05 amSan Francisco
9h 51m
1 stop
ABE7:56 pmAllentown-Bethlehem
$379
American Airlines
Aug 27
ABE6:00 amAllentown-Bethlehem
8h 28m
1 stop
SFO11:28 amSan Francisco
Aug 31
SFO6:02 amSan Francisco
7h 40m
1 stop
ABE4:42 pmAllentown-Bethlehem
$419
American Airlines
Aug 27
ABE6:00 amAllentown-Bethlehem
8h 28m
1 stop
SFO11:28 amSan Francisco
Aug 31
SFO6:02 amSan Francisco
7h 40m
1 stop
ABE4:42 pmAllentown-Bethlehem
$459

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to San Francisco 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, momondo users made 832,500 searches. Data last updated August 12, 2026.
Use the filters below to find and compare flights from Allentown to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Tue 9/8

5:36 pm-12:30 am

1 stop9h 54m

San Francisco

Sat 9/12

11:00 pm-9:39 am

1 stop7h 39m

$379

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Tue 9/8

5:36 pm-12:30 am

1 stop9h 54m

San Francisco

Sat 9/12

10:35 pm-9:39 am

1 stop8h 04m

$379

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Sat 9/26

2:25 pm-8:08 pm

1 stop8h 43m

San Francisco

Tue 9/29

10:31 am-10:17 pm

1 stop8h 46m

$379

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Sat 9/19

2:25 pm-8:08 pm

1 stop8h 43m

San Francisco

Sat 9/26

9:02 am-10:18 pm

1 stop10h 16m

$379

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Thu 9/24

5:10 pm-11:56 pm

1 stop9h 46m

San Francisco

Mon 9/28

9:02 am-10:18 pm

1 stop10h 16m

$379

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Sun 9/20

2:28 pm-10:47 am

2 stops23h 19m

San Francisco

Thu 9/24

6:04 am-3:08 pm

1 stop30h 04m

$385

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Fri 1/1

5:40 pm-11:40 pm

1 stop9h 00m

San Francisco

Mon 1/4

6:00 am-5:12 pm

1 stop8h 12m

$403

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Fri 8/28

6:04 pm-11:58 pm

1 stop8h 54m

San Francisco

Tue 9/1

6:00 am-5:23 pm

1 stop8h 23m

$419
Quickest round-trip

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Wed 9/9

5:36 pm-10:55 pm

1 stop8h 19m

San Francisco

Thu 9/10

11:00 pm-9:39 am

1 stop7h 39m

$427

AllentownSan Francisco

ABE Allentown-Bethlehem - SFO San Francisco

ABESFO

Allentown-Bethlehem

Thu 9/10

2:28 pm-10:22 am

2 stops46h 54m

San Francisco

Thu 9/17

11:42 am-3:08 pm

1 stop24h 26m

$472

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

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

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

What is the typical price of a round-trip flight between Allentown and San Francisco?

Prices are currently low for flights on this route.

Typical prices usually range from $410 to $558.
The lowest price recently found on this route was $365.

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $368.

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

As of August 2026, prices for Allentown to San Francisco flights are approximately 70% more expensive when compared to flights at the same time last year.

When to book flights from Allentown to San Francisco

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

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

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

Fastest flight time

8h 03m

Direct flights

None
The fastest flight from Allentown to San Francisco takes 8h 03m
There are no direct flights from Allentown to San Francisco. There are no popular flight routes from Allentown to San Francisco.
Search flight deals

Frequently asked questions about flying from Allentown to San Francisco

  • How far is Allentown-Bethlehem to San Francisco by plane?

    The straight-line distance from Allentown-Bethlehem to San Francisco is 2489.2 mi. By plane, this route typically takes 8h 03m.

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

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

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

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

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Allentown to San Francisco?

Best airlines flying from Allentown to San Francisco

Compare and see reviews for airlines that fly from Allentown to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $256Free CancellationRating
7.8
8,505 reviews
Search Delta flights
United AirlinesPriceFrom $313Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights
American AirlinesPriceFrom $338Free CancellationRating
7.1
11,913 reviews
Search American Airlines flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
South San Francisco
Fremont
Berkeley
Bodega Bay
Hayward
Walnut Creek
Santa Clara
Vallejo
Roseville
Sonoma
Salinas
Sunnyvale
Milpitas
Daly City
Burlingame
Marina
Palo Alto

Why use momondo?

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

Finding the right flight to San Francisco from Allentown is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

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

Flights from Allentown to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to San Francisco from Allentown. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Allentown to San Francisco 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.

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