Find Cheap Flights from San Francisco to Washington Dulles Intl (SFO - IAD)

Search hundreds of travel sites at once for deals on flights to Washington Dulles Intl

Sat 11/18
Sat 11/25
Any month
Compare vs. KAYAK |

Good to Know

Low Season:
September
Best time to beat the crowds
2%
expected price decrease
High Season:
June
Most popular time to fly
8%
expected price increase
Average Price:
$531
(avg. price over the last 2 weeks)
Good Deal:
$364
or less (round trip)

When to Book Flights from San Francisco to Washington Dulles Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $364 or less.
The cheapest flight from San Francisco to Washington Dulles Intl was found 29 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is September.
Morning departure is around 8% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Francisco to Washington Dulles Intl Flights

How long does a flight from San Francisco to Washington Dulles Intl take?
An average nonstop flight takes 7h 06m, covering a distance of 2414 miles.
How many flights are there between San Francisco and Washington Dulles Intl?
There are 806 (nonstop) flights between San Francisco and Washington Dulles Intl per week, averaging 117 per day.
Which airlines provide the cheapest flights from San Francisco to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($214), Multiple Airlines ($219) and JetBlue ($316).
Do I need a passport to fly between San Francisco and Washington Dulles Intl?
No.
Which airlines fly most frequently between San Francisco and Washington Dulles Intl?
United (27 times daily), Air New Zealand (25 times daily), South African (9 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Francisco to Washington Dulles Intl?
For San Francisco to Washington Dulles Intl, Thursday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Washington Dulles Intl back to San Francisco, the best deals are generally found on Tuesday, with Monday being the most expensive.

Book cheap flights from San Francisco to Washington Dulles Intl (round-trip)

Airports
Origin
San Francisco
$214
only
$214
Destination
Washington
$214
only
$214
Thu, Jan 25
SFO
IAD
10h 09m
Tue, Jan 30
IAD
SFO
23h 58m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
MIA
Excellent 10.0

Same as all the other airlines in my opinion. Just way more afreoadable.

MIA
CVG
Good 6.0

More snack/food options

PBI
ISP
Mediocre 2.0

Was unable to make it

DEN
SLC
Okay 5.6

Food, entertainment NA, didn’t use. Rest of flight uneventful, happy to say. Because this was so late due to previous leg of journey delayed, our planned transportation to hotel wa not available.

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

Sat, Dec 9
SFO
IAD
7h 30m
Fri, Dec 15
IAD
SFO
22h 05m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Dec 4
SFO
IAD
9h 52m
Tue, Dec 5
IAD
SFO
10h 54m
Trip: 2 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 6828 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
SJO
MCO
Good 6.0

Los televisores de nuestra fila no funcionaban y al llegar el vuelo tuvimos que esperar 40 minutos para poder salir del avión.

BWI
FLL
Excellent 10.0

Plane was a bit old, seats wore down but otherwise it was great.

SLC
JFK
Excellent 10.0

Space, comfort, treats, tv's Ann's wifi

Nothing

PBI
BDL
Excellent 10.0

It boarded with ease, it left on time, and we got in early. Perfect!

SAN
JFK
Good 7.3

Free in-flight WiFi service for all travelers on the plane. Many onboard entertainment choices available using individual LCD screen display. Many selections of in-flight meals and beverages available for purchase during your flight. Online seat selection and online check-in were fast and efficient. Additional perks for travelers available online.

There was no food included in my flight.

Wed, Dec 13
SFO
IAD
7h 10m
Mon, Dec 18
IAD
SFO
8h 20m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25178 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MCI
DFW
Mediocre 2.0

I cancelled this flight months ago, yet it was still in your records

BDL
CLT
Okay 4.0

No baggage controls from seat 18 to 28 no bags would fit. As we exited all the front rows we're waiting to get there bags stored in back of planes overhead bins. That's just not right, especially when they charge us extra to take a bag for overhead bins storage.

LAX
MIA
Good 7.6

Movies, clean, efficient

Paying of my small Checked bag

DFW
SDF
Okay 4.6

Considerate flight attendants. Turned lights down for evening flight, so we could get some rest.

Flight was not on time. Time was changed a day prior with no reason explained. No in flight entertainment on this flight.

FAT
DFW
Excellent 10.0

Nice amount of leg room!!!

Nothing

Tue, Dec 5
SFO
IAD
7h 06m
Tue, Dec 12
IAD
SFO
8h 04m
Trip: 8 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 225 reviews
Overall
8.2
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
8.0
Food
7.6
SFO
IAD
Good 7.0

Good flight. Left and arrived on time. Comfortable.

none

SFO
IAD
Excellent 8.6

seats were comfortable, boarding was easy, flight attendants were nice, flight was on time.

I couldn't connect to wifi and my personal tv screen didn't work even after it was reset.

SFO
IAD
Good 6.0

An hour and half delay was inconvenient

SFO
IAD
Excellent 10.0

The friendly staff throughout, from check in to air crew. The plane was clean, updated technology options for food ordering and free movies was perfect.

I would've liked a little more leg room.

SFO
IAD
Excellent 10.0

I scheduled a Monday Evening Red-Eye which was half full. My sense is most airlines would have cancelled a half full flight, I appreciate that Virgin stood behind its commitment and didn't leave us stranded at the airport for the night.

Wed, Jan 24
SFO
IAD
29h 11m
Fri, Jan 26
IAD
SFO
23h 48m
Trip: 3 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
MIA
Excellent 10.0

Same as all the other airlines in my opinion. Just way more afreoadable.

MCO
DEN
Okay 4.6

The seats were clean; the cabin looked very nice. The plane got me from point A to B safely. smoothest Lansing ever!

Flight was delayed 2.5 hours. No communication from the cockpit, 2 out of the 4 flight attendants we really crabby. Undersea storage was unusually small. I’m 5’8” and my knees were pressed against the seat in front of me and the seats are hard. My legs were numb for part of the trip.

DEN
ORD
Excellent 10.0

On time. Very organized.

PBI
ISP
Mediocre 2.0

Was unable to make it

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

Thu, Jan 11
SFO
IAD
27h 30m
Tue, Jan 16
IAD
SFO
23h 58m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 12
SFO
IAD
13h 25m
Fri, Dec 15
IAD
SFO
22h 05m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 22
SFO
IAD
8h 26m
Tue, Jun 5
IAD
SFO
21h 09m
Trip: 15 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
CVG
Good 6.0

More snack/food options

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

PHL
MIA
Excellent 10.0

Same as all the other airlines in my opinion. Just way more afreoadable.

LGA
MIA
Mediocre 3.6

Flight Very late , when departure already at night Uncomfortable seats $45 for a bag and I have drop it off myself after pay

DEN
SLC
Okay 5.6

Food, entertainment NA, didn’t use. Rest of flight uneventful, happy to say. Because this was so late due to previous leg of journey delayed, our planned transportation to hotel wa not available.

Wed, Jan 24
SFO
IAD
29h 11m
Sat, Jan 27
IAD
SFO
15h 47m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 6
SFO
IAD
17h 38m
Sun, Dec 17
IAD
SFO
22h 20m
Trip: 12 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

DEN
ORD
Okay 5.3

Low cost

They make you pay for everything. Even peanuts. No entertainment.

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

MCO
DEN
Okay 4.6

The seats were clean; the cabin looked very nice. The plane got me from point A to B safely. smoothest Lansing ever!

Flight was delayed 2.5 hours. No communication from the cockpit, 2 out of the 4 flight attendants we really crabby. Undersea storage was unusually small. I’m 5’8” and my knees were pressed against the seat in front of me and the seats are hard. My legs were numb for part of the trip.

Tue, Jan 9
SFO
IAD
10h 08m
Wed, Jan 10
IAD
SFO
10h 58m
Trip: 2 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 6828 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
JFK
PUJ
Excellent 10.0

Same

Same

JFK
RSW
Good 6.0

the minute you are on the air the flights where very good

this ticket that included the flight was operated by american airline and jet blue and was under Iberia name... actually there was no father to that flight! and i couldn't make any checkin on line and needed to carry my bag to my connection flight.. and i did buy one ticket ! that included the connections.

BUF
JFK
Excellent 10.0

Service was phenomenal

DEN
JFK
Excellent 10.0

On the overnight we got eye masks and ear plugs and pleasant lighting. It was very nice. Every one of the staff members were nice and accommodating.

SJO
MCO
Good 6.0

Los televisores de nuestra fila no funcionaban y al llegar el vuelo tuvimos que esperar 40 minutos para poder salir del avión.

Tue, Jan 16
SFO
IAD
7h 26m
Mon, Jan 22
IAD
SFO
8h 15m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25178 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
RNO
Mediocre 2.0

Not a single part has a positive remark

Well - this partner of westjet was terrible. The amount of re direction to get to the final terminal was absurd .. that's just my venting My real problem is that then "crew" or team that represent s the American Airlines / compass part was just useless. A hand full of people - myself included didn't get a chance to board the plane as they didn't make any announcements. Beyond disappointing. When you check in they take your cell phone "in case " well no call no txt no nothing. It was a joke the level of service No apologies or anything just a group of any tired patrons getting the worst customer experience. I'll never EVER book a flight that has anything to do with American Airlines or its partners

CHO
ORD
Good 7.6

It was a little hot in the plane at during start and touchdown

SAL
MIA
Excellent 8.6

There was no individual entertainment on board (TV’s, internet, etc)

LAX
MIA
Good 7.6

Movies, clean, efficient

Paying of my small Checked bag

PHL
PHX
Okay 5.0

Arrived safely and on time.

No power outlets at seats.

Thu, Dec 7
SFO
IAD
8h 09m
Fri, Dec 15
IAD
SFO
22h 05m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 17
SFO
IAD
17h 46m
Sun, Jan 28
IAD
SFO
30h 41m
Trip: 12 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

DEN
SLC
Okay 5.6

Food, entertainment NA, didn’t use. Rest of flight uneventful, happy to say. Because this was so late due to previous leg of journey delayed, our planned transportation to hotel wa not available.

MCO
DEN
Okay 4.6

The seats were clean; the cabin looked very nice. The plane got me from point A to B safely. smoothest Lansing ever!

Flight was delayed 2.5 hours. No communication from the cockpit, 2 out of the 4 flight attendants we really crabby. Undersea storage was unusually small. I’m 5’8” and my knees were pressed against the seat in front of me and the seats are hard. My legs were numb for part of the trip.

Mon, Feb 12
SFO
IAD
8h 30m
Tue, Feb 13
IAD
SFO
10h 39m
Trip: 2 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 6828 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
JFK
PUJ
Excellent 10.0

Same

Same

BWI
FLL
Excellent 10.0

Plane was a bit old, seats wore down but otherwise it was great.

DCA
BOS
Excellent 10.0

On time funny staff.

SJO
MCO
Good 6.0

Los televisores de nuestra fila no funcionaban y al llegar el vuelo tuvimos que esperar 40 minutos para poder salir del avión.

PBI
BDL
Excellent 10.0

It boarded with ease, it left on time, and we got in early. Perfect!

Tue, May 8
SFO
IAD
8h 26m
Tue, May 15
IAD
SFO
8h 19m
Trip: 8 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

LGA
MIA
Mediocre 3.6

Flight Very late , when departure already at night Uncomfortable seats $45 for a bag and I have drop it off myself after pay

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

PBI
ISP
Mediocre 2.0

Was unable to make it

FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

Tue, Feb 6
SFO
IAD
10h 09m
Fri, Feb 9
IAD
SFO
12h 49m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Nov 30
SFO
IAD
7h 55m
Wed, Dec 6
IAD
SFO
10h 54m
Trip: 7 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 6828 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
BUF
JFK
Excellent 10.0

Service was phenomenal

SJO
MCO
Good 6.0

Los televisores de nuestra fila no funcionaban y al llegar el vuelo tuvimos que esperar 40 minutos para poder salir del avión.

BOS
DTW
Excellent 10.0

The trip was a pleasant surprise being my first time with this company!!! Very pleasant and the flight attendants were excellent!!

DCA
BOS
Excellent 10.0

On time funny staff.

PBI
BDL
Excellent 10.0

It boarded with ease, it left on time, and we got in early. Perfect!

Sun, Dec 10
SFO
IAD
21h 02m
Sun, Dec 17
IAD
SFO
22h 20m
Trip: 8 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

MIA
CVG
Good 6.0

More snack/food options

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

DEN
ORD
Excellent 10.0

On time. Very organized.

Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.