Find Cheap Flights from San Diego to Washington Dulles Intl (SAN - IAD)

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Sat 11/18
Sat 11/25
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Good to Know

Low Season:
October
Best time to beat the crowds
2%
expected price decrease
High Season:
January
Most popular time to fly
13%
expected price increase
Average Price:
$498
(avg. price over the last 2 weeks)
Good Deal:
$331
or less (round trip)

When to Book Flights from San Diego 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 $331 or less.
The cheapest flight from San Diego to Washington Dulles Intl was found 19 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 3% 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 Diego to Washington Dulles Intl Flights

How long does a flight from San Diego to Washington Dulles Intl take?
An average nonstop flight takes 4h 37m, covering a distance of 2248 miles.
How many flights are there between San Diego and Washington Dulles Intl?
There are 172 (nonstop) flights between San Diego and Washington Dulles Intl per week, averaging 26 per day.
Which airlines provide the cheapest flights from San Diego to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($187), United ($365) and Multiple Airlines ($455).
Do I need a passport to fly between San Diego and Washington Dulles Intl?
No.
Which airlines fly most frequently between San Diego and Washington Dulles Intl?
United (9 times daily), Brussels Airlines (4 times daily), SAS (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Diego to Washington Dulles Intl?
For San Diego to Washington Dulles Intl, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington Dulles Intl back to San Diego, the best deals are generally found on Monday, with Thursday being the most expensive.

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

Airports
Origin
San Diego
$187
only
$187
Destination
Washington
$187
only
$187
Fri, Dec 1
SAN
IAD
29h 25m
Mon, Dec 4
IAD
SAN
9h 00m
Trip: 4 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
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

DEN
ORD
Okay 5.3

Low cost

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

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.

MIA
CVG
Good 6.0

More snack/food options

Wed, Jan 3
SAN
IAD
4h 46m
Tue, Jan 9
IAD
SAN
5h 41m
Trip: 7 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 47 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
IAD
Good 6.6

The crew was all very polite, attentive and helpful.

SAN
IAD
Okay 4.3

My snack box

I purchased wifi for the flight to stream entertainment. Plugged my Ipad into the charger only to realize the charger was broken. So within an hour I was unable to use the wifi I paid 16ish dollars to use the whole flight bc they advertised "outlets in every chair" wasn't working.

SAN
IAD
Excellent 9.3

San Diego airport had a curfew of 11:30. The flight was delayed 30 minutes and the crew did a great job of boarding with a purpose to expedite the process and have us ready to take off by curfew.

The flight was 30 minutes late in a city with a curfew so we ran the chance of not being able to take off that night.

SAN
IAD
Good 6.6

The whole wifi entertainment system unites uses won't work on newer android versions!

SAN
IAD
Excellent 10.0

Friendly service

Long time in air...

Fri, Feb 2
SAN
IAD
10h 39m
Wed, Feb 7
IAD
SAN
11h 41m
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
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

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

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
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.

Mon, Nov 20
SAN
IAD
8h 06m
Fri, Nov 24
IAD
SAN
9h 00m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 30
SAN
IAD
7h 59m
Wed, Jun 6
IAD
SAN
15h 16m
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
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.

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.

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.

DEN
ORD
Okay 5.3

Low cost

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

Tue, Feb 20
SAN
IAD
4h 37m
Sat, Feb 24
IAD
SAN
5h 21m
Trip: 5 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 47 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
IAD
Okay 4.6

Leg room was good and on time.

For a 51/2 hr flight they only offered a beverage twice in a these litTle 4 is cups!! The united app was not working and the internet was sporadic which lent to a long long flight with no movies. Overall not impressed.

SAN
IAD
Okay 4.3

No space, outdated non-working air, extremely hot and stuffy, VERY dry air, no screens

SAN
IAD
Excellent 9.3

San Diego airport had a curfew of 11:30. The flight was delayed 30 minutes and the crew did a great job of boarding with a purpose to expedite the process and have us ready to take off by curfew.

The flight was 30 minutes late in a city with a curfew so we ran the chance of not being able to take off that night.

SAN
IAD
Mediocre 2.0

Nothing

12 hours delayed because they didn't start the safety check until just before departure despite the fact that the plane had been on the ground for 2 hours. We missed curfew and had to fly out the next day. The seats were TINY and uncomfortable. Despite an almost empty flight, we weren't allowed to move to more spacious seats.

SAN
IAD
Excellent 10.0

Friendly service

Long time in air...

Sat, Apr 7
SAN
IAD
16h 50m
Wed, Apr 11
IAD
SAN
15h 38m
Trip: 5 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
DEN
ORD
Okay 5.3

Low cost

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

MIA
CVG
Good 6.0

More snack/food options

PBI
ISP
Mediocre 2.0

Was unable to make it

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

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

Thu, Nov 30
SAN
IAD
4h 45m
Sat, Dec 2
IAD
SAN
5h 33m
Trip: 3 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 47 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
IAD
Okay 4.3

My snack box

I purchased wifi for the flight to stream entertainment. Plugged my Ipad into the charger only to realize the charger was broken. So within an hour I was unable to use the wifi I paid 16ish dollars to use the whole flight bc they advertised "outlets in every chair" wasn't working.

SAN
IAD
Okay 4.3

No space, outdated non-working air, extremely hot and stuffy, VERY dry air, no screens

SAN
IAD
Good 6.6

Crew were nice and flight was on time.

I didn't know i needed an app before i will be able to enjoy entertainment on board, so i had to pay for internet to be able to download the app to be able to watch movie. PA system wasn't gud.

SAN
IAD
Good 6.6

The crew was all very polite, attentive and helpful.

SAN
IAD
Excellent 10.0

Friendly service

Long time in air...

Thu, Dec 7
SAN
IAD
4h 41m
Sat, Dec 9
IAD
SAN
5h 33m
Trip: 3 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 47 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
IAD
Okay 4.3

My snack box

I purchased wifi for the flight to stream entertainment. Plugged my Ipad into the charger only to realize the charger was broken. So within an hour I was unable to use the wifi I paid 16ish dollars to use the whole flight bc they advertised "outlets in every chair" wasn't working.

SAN
IAD
Mediocre 2.0

Nothing

12 hours delayed because they didn't start the safety check until just before departure despite the fact that the plane had been on the ground for 2 hours. We missed curfew and had to fly out the next day. The seats were TINY and uncomfortable. Despite an almost empty flight, we weren't allowed to move to more spacious seats.

SAN
IAD
Okay 4.0

How nice the crew was

That I was in the middle and lost my phone at the airport

SAN
IAD
Okay 4.3

No space, outdated non-working air, extremely hot and stuffy, VERY dry air, no screens

SAN
IAD
Good 6.6

The crew was all very polite, attentive and helpful.

Sat, Dec 9
SAN
IAD
4h 41m
Mon, Jan 1
IAD
SAN
5h 41m
Trip: 24 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 47 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
IAD
Good 6.6

Crew were nice and flight was on time.

I didn't know i needed an app before i will be able to enjoy entertainment on board, so i had to pay for internet to be able to download the app to be able to watch movie. PA system wasn't gud.

SAN
IAD
Okay 4.3

My snack box

I purchased wifi for the flight to stream entertainment. Plugged my Ipad into the charger only to realize the charger was broken. So within an hour I was unable to use the wifi I paid 16ish dollars to use the whole flight bc they advertised "outlets in every chair" wasn't working.

SAN
IAD
Mediocre 2.0

Nothing

12 hours delayed because they didn't start the safety check until just before departure despite the fact that the plane had been on the ground for 2 hours. We missed curfew and had to fly out the next day. The seats were TINY and uncomfortable. Despite an almost empty flight, we weren't allowed to move to more spacious seats.

SAN
IAD
Excellent 10.0

Friendly service

Long time in air...

SAN
IAD
Excellent 10.0

I lost my wallet on the plane to San dieago. A very nice honest family turned it over to the crew. The baggage claim customer service agent ran back to the plane to retrieve it for me. It had everything I needed, my ID cash for my trip. I'm thankful for the honest people still in this world! Many thanks to the family and crew and uninteds customer service!!! A+++++

Tue, Dec 19
SAN
IAD
4h 46m
Fri, Dec 29
IAD
SAN
5h 41m
Trip: 11 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 47 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
IAD
Excellent 8.3

They fixed some mechanical maintenance issue and did not have to make us switch planes, so I didn't mind the wait; just wished the AC would have been working a little better. Entire flight was smooth all the way back in, though at 6'1" I found the seats a bit cramped, the crew did a great job making sure people were taken care of - it wasn't their fault, and I'd prefer they take their time so we actually make it where we need to go.

The wifi did not work at all for my girlfriend, even after paying the $18 and trying for the entire 4hr flight, the weak signal dropped out continuously. She followed up with customer service about the issue, but the website has yet to process her refund for it; it keeps crashing. I don't see how you DON'T offer free, and functional WiFi on a 4hr flight in 2016 - I have it at my dealership for customers waiting on a 45 min oil change.

SAN
IAD
Excellent 9.3

San Diego airport had a curfew of 11:30. The flight was delayed 30 minutes and the crew did a great job of boarding with a purpose to expedite the process and have us ready to take off by curfew.

The flight was 30 minutes late in a city with a curfew so we ran the chance of not being able to take off that night.

SAN
IAD
Good 6.6

Crew were nice and flight was on time.

I didn't know i needed an app before i will be able to enjoy entertainment on board, so i had to pay for internet to be able to download the app to be able to watch movie. PA system wasn't gud.

SAN
IAD
Okay 4.3

My snack box

I purchased wifi for the flight to stream entertainment. Plugged my Ipad into the charger only to realize the charger was broken. So within an hour I was unable to use the wifi I paid 16ish dollars to use the whole flight bc they advertised "outlets in every chair" wasn't working.

SAN
IAD
Excellent 10.0

Friendly service

Long time in air...

Mon, Mar 19
SAN
IAD
4h 50m
Mon, Mar 26
IAD
SAN
5h 21m
Trip: 8 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 47 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
IAD
Mediocre 2.0

Nothing

12 hours delayed because they didn't start the safety check until just before departure despite the fact that the plane had been on the ground for 2 hours. We missed curfew and had to fly out the next day. The seats were TINY and uncomfortable. Despite an almost empty flight, we weren't allowed to move to more spacious seats.

SAN
IAD
Okay 4.0

How nice the crew was

That I was in the middle and lost my phone at the airport

SAN
IAD
Good 6.6

The crew was all very polite, attentive and helpful.

SAN
IAD
Excellent 10.0

Friendly service

Long time in air...

SAN
IAD
Okay 4.3

No space, outdated non-working air, extremely hot and stuffy, VERY dry air, no screens

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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.