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Fremont

$140+ Cheap flights from Dulles Intl (IAD) 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SFO
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Fremont are usually found in January or May, booked 72 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Dulles Intl to Fremont

Cheapest flights from Dulles Intl to Fremont
Explore the most affordable flight options available from Dulles Intl to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Frontier deal was found by Cheapflights users on 12/14. 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.
Fri 12/196:05 amIAD - SFO
1 stop10h 08mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/14$363
This Frontier deal was found by Cheapflights users on 12/14. 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.
Mon 12/155:45 amIAD - SFO
1 stop10h 43mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/14$383
This Frontier deal was found by Cheapflights users on 12/14. 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.
Tue 12/236:34 amIAD - SFO
1 stop9h 39mFrontier
Sun 1/1111:35 pmSFO - IAD
1 stop12h 52mFrontier
Deal found 12/14$397
This Frontier deal was found by Cheapflights users on 12/14. 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.
Thu 12/255:35 amIAD - SFO
1 stop10h 38mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/14$412
This Super.com deal was found by Cheapflights users on 12/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:05 amIAD - SFO
1 stop10h 08mFrontier
Wed 12/3111:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/14$417
This Expedia deal was found by Cheapflights users on 12/15. 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.
Fri 12/196:05 amIAD - SFO
1 stop10h 08mFrontier
Sun 1/411:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/15$427
This Super.com deal was found by Cheapflights users on 12/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:34 amIAD - SFO
1 stop9h 39mFrontier
Tue 12/3011:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/14$432
This Frontier deal was found by Cheapflights users on 12/13. 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.
Sun 12/215:35 amIAD - SFO
1 stop10h 38mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/13$433
This Super.com deal was found by Cheapflights users on 12/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:05 amIAD - SFO
1 stop10h 08mFrontier
Wed 12/3111:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/14$436
This Frontier deal was found by Cheapflights users on 12/14. 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.
Mon 12/155:45 amIAD - SFO
1 stop10h 43mFrontier
Wed 12/3111:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/14$437
This Priceline deal was found by Cheapflights users on 12/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:35 amIAD - SFO
1 stop10h 38mFrontier
Mon 12/2911:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/12$443
This Frontier deal was found by Cheapflights users on 12/14. 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.
Mon 12/155:45 amIAD - SFO
1 stop10h 43mFrontier
Sun 1/411:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/14$447

Find flight deals from Dulles Intl to Fremont

Keep the following information in mind while searching for Dulles Intl to Fremont flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$276
(Kiwi.com)

One-way from

$140
(Super.com)

Popular in

December

Cheapest in

January

Average price

$534
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. Dulles Intl to Fremont
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Fremont
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 December 15, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Fremont that are best for you.

Fly from

Dulles Intl

Fly to

Fremont

Route

Depart

Return

Price

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 1/10

5:27 pm-11:25 pm

1 stop8h 58m

San Francisco

Tue 1/20

2:05 pm-12:24 am

1 stop7h 19m

$277

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Tue 2/17

4:10 pm-7:25 pm

Nonstop6h 15m

San Francisco

Sun 2/22

11:20 pm-7:31 am

Nonstop5h 11m

$277

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Mon 2/9

7:30 am-1:43 pm

1 stop9h 13m

San Francisco

Sat 2/28

10:54 pm-11:50 am

1 stop9h 56m

$291

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 1/31

6:04 pm-10:42 am

1 stop19h 38m

San Francisco

Sun 2/8

7:00 am-5:04 pm

1 stop7h 04m

$296

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Tue 2/24

7:05 am-3:48 pm

1 stop11h 43m

San Francisco

Thu 2/26

6:40 am-5:27 pm

1 stop7h 47m

$296

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 2/26

12:38 pm-10:41 pm

2 stops13h 03m

San Francisco

Tue 3/3

6:00 am-4:28 pm

1 stop7h 28m

$296

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Fri 2/27

4:10 pm-7:25 pm

Nonstop6h 15m

San Francisco

Sun 3/8

9:45 pm-5:51 am

Nonstop5h 06m

$297

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Fri 2/20

6:20 am-9:35 am

Nonstop6h 15m

San Francisco

Mon 2/23

11:20 pm-7:31 am

Nonstop5h 11m

$297

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-10:56 am

1 stop7h 56m

San Francisco

Tue 1/27

5:45 am-4:46 pm

1 stop8h 01m

$297

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Mon 1/12

7:30 am-11:28 pm

1 stop18h 58m

San Francisco

Mon 1/19

9:30 pm-9:13 am

1 stop8h 43m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 24 results
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Best time to book a flight from Dulles Intl to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Dulles Intl 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. Dulles Intl Airport to Fremont

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Fremont. Price data was last updated on December 12, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Fremont is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Fremont (average of $188). Flying from Washington, D.C. Dulles Intl Airport to Fremont in June is currently the most expensive (average of $275). 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 IAD to FR8?

Find hourly flight availability from Dulles Intl 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 December 15, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Fremont is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 14% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Fremont. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Fremont flight should consider departing on Wednesday evenings 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.

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 December 15, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Hawaiian Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Fremont by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,455 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,455 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,819 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,094 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,082 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to Fremont?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Fremont in 6h 15m. Fly via Delta, United Airlines, or Alaska Airlines to get the fastest option. Airlines will cover a distance of 2412 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. Dulles Intl Airport to Fremont one-way?

    $89 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 reliable airlines from Washington, D.C. Dulles Intl Airport to Fremont?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Fremont on time: Egyptair (90%), Ethiopian Air (88%), Air China (85%).

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

    While on average a flight from Washington, D.C. Dulles Intl Airport to Fremont is generally $1,135, our data shows the cheapest flight currently is $158. When looking at the most popular route, (Washington, D.C. Dulles Intl - San Francisco), you can expect to pay $179 for that flight.

  • Can I find deals for flights from Dulles Intl to Fremont that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Fremont flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Fremont?

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

  • Can I find deals for business class flights from Dulles Intl to Fremont?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Fremont?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Fremont (average of $188). Flying from Washington, D.C. Dulles Intl Airport to Fremont in June is currently the most expensive (average of $275). 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

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Alternative routes for Dulles Intl to Fremont

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Dulles Intl to Fremont

Discover the top 7 airlines that operate flights from Dulles Intl 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$269FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$436FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$224Average$365FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$242Average$487FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$266Average$453FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$267Average$397FlexibilityNo cancel feeOn-time85%
DeltaCheapest$276Average$350FlexibilityNo cancel feeOn-timeN/A

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