HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Fremont

$137+ Cheap flights from Washington, D.C. (WAS) to Fremont, CA

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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SFO
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Fremont 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.
Cheapflights Tip: The best prices from Washington, D.C. to Fremont are usually found in May or August, booked 70 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Washington, D.C. to Fremont

Cheapest flights from Washington, D.C. to Fremont
Explore the most affordable flight options available from Washington, D.C. to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2026.

This Trip.com deal was found by Cheapflights users on 3/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:10 am
IAD
-
SFO
1 stop14h 24m
Frontier
Wed 4/227:00 am
SFO
-
IAD
2 stops22h 56m
Frontier
Deal found 3/20$282
This Trip.com deal was found by Cheapflights users on 3/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:59 pm
DCA
-
SFO
1 stop24h 43m
Frontier
Wed 6/38:56 am
SFO
-
DCA
1 stop10h 02m
Frontier
Deal found 3/20$282
This Expedia deal was found by Cheapflights users on 3/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:20 am
IAD
-
SFO
1 stop14h 14m
Multiple Airlines
Wed 5/67:15 am
SFO
-
IAD
2 stops13h 54m
Multiple Airlines
Deal found 3/22$283
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Thu 5/141:59 pm
DCA
-
SFO
1 stop13h 24m
Frontier
Thu 5/216:00 am
SFO
-
DCA
1 stop12h 58m
Frontier
Deal found 3/21$283
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Tue 4/148:00 am
DCA
-
SFO
2 stops16h 39m
Frontier
Thu 4/1611:56 am
SFO
-
DCA
1 stop7h 03m
Frontier
Deal found 3/21$284
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Wed 5/611:12 am
IAD
-
SFO
2 stops12h 52m
Frontier
Mon 5/1110:15 pm
SFO
-
IAD
1 stop8h 57m
Frontier
Deal found 3/20$285
This Kiwi.com deal was found by Cheapflights users on 3/22. 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.
Wed 5/137:00 am
DCA
-
SFO
1 stop7h 42m
Frontier
Tue 5/195:36 pm
SFO
-
DCA
2 stops16h 23m
Frontier
Deal found 3/22$285
This Frontier deal was found by Cheapflights users on 3/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:15 am
IAD
-
SFO
1 stop13h 19m
Frontier
Fri 5/110:38 pm
SFO
-
IAD
1 stop8h 16m
Frontier
Deal found 3/22$286
This Kiwi.com deal was found by Cheapflights users on 3/22. 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.
Tue 5/266:00 pm
DCA
-
SFO
1 stop9h 23m
Frontier
Tue 6/166:00 am
SFO
-
DCA
1 stop7h 57m
Frontier
Deal found 3/22$286
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Tue 5/511:07 am
IAD
-
SFO
2 stops12h 57m
Frontier
Sat 5/911:59 pm
SFO
-
IAD
1 stop8h 42m
Frontier
Deal found 3/23$287
This Kiwi.com deal was found by Cheapflights users on 3/22. 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.
Thu 4/26:00 pm
DCA
-
SFO
1 stop9h 23m
Frontier
Tue 4/79:00 pm
SFO
-
DCA
1 stop21h 59m
Frontier
Deal found 3/22$287
This Southwest deal was found by Cheapflights users on 3/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:30 pm
IAD
-
SFO
1 stop8h 15m
Southwest
Wed 4/2910:30 am
SFO
-
IAD
2 stops10h 10m
Southwest
Deal found 3/23$288

Find flight deals from Washington, D.C. to Fremont

Keep the following information in mind while searching for Washington, D.C. to Fremont flight deals. Data was last updated March 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$282
(Trip.com)

One-way from

$137
(CheapOair)

Popular in

March

Cheapest in

May

Average price

$497
Provider with most accurate pricing for Washington, D.C. (WAS)-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San Francisco flights.
Search Deals
From Washington, D.C. (WAS) to Fremont
Search Deals
One-way flight from Washington, D.C. (WAS) to Fremont
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Fremont 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 March 25, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Wed 4/22

7:25 am-5:30 pm

2 stops13h 05m

San Francisco

Wed 4/29

5:25 am-6:40 pm

2 stops10h 15m

$299

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 4/29

5:30 pm-10:45 pm

1 stop8h 15m

San Francisco

Sat 5/2

6:15 am-10:55 pm

2 stops13h 40m

$317

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 5/2

6:00 am-9:10 am

Nonstop6h 10m

San Francisco

Sat 5/9

10:46 pm-7:20 am

Nonstop5h 34m

$329

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Mon 4/20

7:45 pm-12:20 am

1 stop7h 35m

San Francisco

Sat 4/25

7:00 am-8:45 pm

2 stops10h 45m

$346

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Tue 5/12

7:05 pm-12:50 am

1 stop8h 45m

San Francisco

Fri 5/22

10:40 pm-7:10 am

Nonstop5h 30m

$361

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Wed 4/15

4:50 pm-11:15 pm

2 stops9h 25m

San Francisco

Sat 4/18

7:00 am-8:45 pm

2 stops10h 45m

$370

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 5/28

8:15 pm-11:20 pm

Nonstop6h 05m

San Francisco

Mon 7/6

9:10 pm-5:25 am

Nonstop5h 15m

$380

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 4/16

6:10 am-12:35 pm

2 stops9h 25m

San Francisco

Wed 4/22

7:40 pm-8:50 am

2 stops10h 10m

$386

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 5/7

6:45 am-11:35 am

1 stop7h 50m

San Francisco

Sun 5/10

9:15 pm-5:30 am

Nonstop5h 15m

$390

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Mon 5/11

6:29 pm-12:46 am

1 stop9h 17m

San Francisco

Tue 5/19

12:30 pm-11:46 pm

1 stop8h 16m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Washington, D.C. to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Washington, D.C. 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 Washington, D.C. to Fremont

How far ahead should I book a flight from Washington, D.C. to Fremont?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Fremont. Price data was last updated on March 13, 2026.

The price you pay for your flight from Washington, D.C. to Fremont may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. to Fremont?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Fremont (average of $127). Flying from Washington, D.C. to Fremont in February is currently the most expensive (average of $230). 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 WAS to FR8?

Find hourly flight availability from Washington, D.C. to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2026.

It’s typically best to fly out from Washington, D.C. to Fremont at noon. Doing so could potentially save you 38% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. to Fremont?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Fremont. Price data was last updated on September 28, 2025.

Travelers seeking maximum savings on their Washington, D.C. to Fremont flight should consider departing on Saturday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. to Fremont

Explore weekly flight availability from Washington, D.C. to Fremont. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 25, 2026.

The most flights from WAS to FR8 are scheduled on a Wednesday (38 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Washington, D.C. to Fremont?

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated March 25, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andHawaiian Airlines from Washington, D.C. to Fremont have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,333 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,111 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Hawaiian Airlines
7.8
Good
2,840 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,477 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,017 reviews
Southwest
8.0
Very good
4,333 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Fremont. 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 Washington, D.C. to Fremont?

    Airlines like Southwest, United Airlines, and Delta fly from Washington, D.C. to Fremont in about 6h 10m. The time it takes to get you to your destination can typically vary by up to 6h 55m. Airlines will cover a distance of 2449 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Washington, D.C. to Fremont one-way?

    $66 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Hawaiian Airlines, with prices starting from $92 and $118, respectively.

  • What are the most popular routes from Washington, D.C. to Fremont?

    While some choose either Washington, D.C. Reagan-National - San Francisco or Baltimore/Washington - San Francisco, Washington, D.C. Dulles Intl - San Francisco is the most popular route from Washington, D.C. to Fremont.

  • What are the most reliable airlines from Washington, D.C. to Fremont?

    Before booking your flight to Fremont from Washington, D.C., check out the most reliable airlines to get you to your destination on time: ITA Airways (100%), Air China (88%), United Airlines( 85%).

  • What are the cheapest flights from Washington, D.C. to Fremont?

    While on average a flight from Washington, D.C. to Fremont is generally $1,354, our data shows the cheapest flight currently is $195. When looking at the most popular route, (Washington, D.C. Dulles Intl - San Francisco), you can expect to pay $210 for that flight.

  • Can I find deals for flights from Washington, D.C. to Fremont that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Fremont flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Fremont?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Fremont.

  • Can I find deals for business class flights from Washington, D.C. to Fremont?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Fremont 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 Washington, D.C. to Fremont?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Fremont (average of $127). Flying from Washington, D.C. to Fremont in February is currently the most expensive (average of $230). 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.

Top 10 airlines flying from Washington, D.C. to Fremont

Discover the top 10 airlines that operate flights from Washington, D.C. to Fremont. 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 March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$123Average$289FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$389FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$138Average$393FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$142Average$335FlexibilityNo cancel feeOn-time83%
JetBlueCheapest$146Average$333FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$159Average$256FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$184Average$464FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$467FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$222Average$472FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$224Average$384FlexibilityNo cancel feeOn-time75%

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.