What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Diego to Washington, D.C. flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 9% of flights being delayed.

What is the most punctual flight time for San Diego to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

How often are flights from San Diego to Washington, D.C. delayed?

About 9% of weekly flights between San Diego and Washington, D.C. have experienced delays in the past year, with the average delay time being 127 minutes.

How long is the flight from San Diego to Washington, D.C. Dulles Intl Airport?

Departing from San Diego to Washington, D.C. Dulles Intl Airport will take you 4h 54m. The distance from San Diego to Washington, D.C. Dulles Intl Airport is about 2248 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Weekly flight availability from San Diego to Washington, D.C. Dulles Intl Airport

The most flights from SAN to IAD are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

What are the most reliable airlines from San Diego to Washington, D.C. Dulles Intl Airport?

Consider Austrian Airlines (87%), Brussels Airlines (87%) or Ethiopian Air (77%) when booking your flight. These represent the most reliable airlines when flying from San Diego to Washington, D.C. Dulles Intl Airport.

What airport do you fly from for flights from San Diego to Washington, D.C. Dulles Intl?

San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from San Diego; the airport handles an average of 6 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the San Diego airport to Washington, D.C. Dulles Intl. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.

Can I find deals for flights from San Diego to Dulles Intl that include hotel bookings?

Yes. In addition to deals on San Diego to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from San Diego to Dulles Intl?

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

Can I find deals for business class flights from San Diego to Dulles Intl?

Yes. Cheapflights offers flight deals from San Diego to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£139+ Cheap Flights from San Diego to Washington, D.C. Dulles Intl Airport

Cheap flight deals from San Diego to Dulles Intl

Enter your travel dates to find the best prices.

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Cheapest flights from San Diego to Dulles Intl
Explore the most affordable flight options available from San Diego to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 September 2026.

Sat 7/1121:45 -

Nonstop4h 42m

Sun 8/1106:39 -

1 stop7h 52m

Deal found 28/9£258

Thu 29/1014:08 -

1 stop7h 22m

Sat 7/1112:45 -

Nonstop5h 43m

Deal found 28/9£259

Wed 28/1009:20 -

1 stop11h 39m

Mon 2/1118:46 -

Nonstop5h 41m

Deal found 28/9£262

Fri 23/1014:10 -

1 stop7h 32m

Tue 27/1008:13 -

1 stop7h 31m

Deal found 29/9£266

Thu 29/1012:38 -

1 stop9h 04m

Sun 1/1106:00 -

1 stop9h 44m

Deal found 30/9£270

Fri 30/1014:08 -

1 stop7h 22m

Mon 2/1117:50 -

Nonstop5h 43m

Deal found 26/9£274

Thu 29/1012:39 -

1 stop7h 36m

Sun 1/1117:50 -

Nonstop5h 43m

Deal found 28/9£277

Fri 25/1211:19 -

1 stop9h 22m

Tue 29/1212:36 -

1 stop8h 44m

Deal found 29/9£281

Wed 23/1214:23 -

1 stop7h 15m

Wed 30/1208:38 -

Nonstop5h 51m

Deal found 26/9£283

Tue 22/1221:50 -

Nonstop4h 47m

Fri 1/108:38 -

Nonstop5h 51m

Deal found 25/9£288

Thu 31/1221:50 -

Nonstop4h 47m

Tue 5/117:55 -

Nonstop5h 38m

Deal found 29/9£289

Find flight deals from San Diego to Dulles Intl

Round-trip from	£258
One-way from	£139
Popular in	January
Cheapest in	May
Average price	£323

United Airlines
7/11-8/11
1 total stop
12h 34m total
San Diego to Washington, D.C.

Search Deals

United Airlines
11/11-31/12
1 total stop
7h 22m total
San Diego to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (£5 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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Cheapflights Fare Finder

Use the filters below to find and compare flights from San Diego to Washington, D.C. Dulles Intl Airport that are best for you.

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Route

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Price

Cheapest return flight

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Thu 5/11

13:18-23:16

1 stop6h 58m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£143

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Fri 30/10

11:02-22:49

1 stop8h 47m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£143

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Thu 19/11

09:41-17:40

Nonstop4h 59m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£150

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Thu 5/11

13:10-21:06

Nonstop4h 56m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£150

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Mon 23/11

13:10-21:06

Nonstop4h 56m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£173

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Fri 1/1

19:10-05:19

1 stop7h 09m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£178

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Tue 20/10

14:10-00:42

1 stop7h 32m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£181

Fastest return journey

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Tue 2/3

21:55-05:32

Nonstop4h 37m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£184

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Fri 23/10

21:45-05:41

Nonstop4h 56m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£188

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Tue 15/12

19:41-06:43

1 stop8h 02m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£192

Flights are sorted by cheapest return flights first.

Deals found on 28/9

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from San Diego to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San Diego with our price prediction graph.

SAN-IAD

Estimated return 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 San Diego to Washington, D.C. Dulles Intl Airport

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Airlines

Delays

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

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Dulles Intl Airport (average of £285). Flying from San Diego to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of £353). 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 SAN to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Washington, D.C. Dulles Intl Airport as you normally would.

How much does it cost for a return flight from San Diego to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.

San Diego to Washington, D.C. Dulles Intl Airport flights typically cost between £232 and £428 in November.
The cheapest return price found within the last 5 days was £258 on United Airlines (7 Nov–8 Nov).

Related info for your journey

What airport do you fly from for flights from San Diego to Washington, D.C. Dulles Intl?
San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from San Diego; the airport handles an average of 6 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the San Diego airport to Washington, D.C. Dulles Intl. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.
How long is the flight from San Diego to Washington, D.C. Dulles Intl Airport?
Departing from San Diego to Washington, D.C. Dulles Intl Airport will take you 4h 54m. The distance from San Diego to Washington, D.C. Dulles Intl Airport is about 2248 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most reliable airlines from San Diego to Washington, D.C. Dulles Intl Airport?
Consider Austrian Airlines (87%), Brussels Airlines (87%) or Ethiopian Air (77%) when booking your flight. These represent the most reliable airlines when flying from San Diego to Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from San Diego to Dulles Intl that include hotel bookings?
Yes. In addition to deals on San Diego to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Diego to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Dulles Intl.
Can I find deals for business class flights from San Diego to Dulles Intl?
Yes. Cheapflights offers flight deals from San Diego to Dulles Intl 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 San Diego to Washington, D.C. Dulles Intl Airport?
Currently, May is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Dulles Intl Airport (average of £285). Flying from San Diego to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of £353). 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.

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When you search for this flight from San Diego to Dulles Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Diego to Dulles Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dulles Intl from San Diego.

Can Cheapflights find flights from San Diego to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from San Diego to Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from San Diego to Dulles Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dulles Intl from San Diego today and book when prices fit your budget.

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Cheap flights from San Diego to Washington, D.C. Dulles Intl Airport from £139

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Diego to Dulles Intl

Cheapest flights from San Diego to Dulles IntlExplore the most affordable flight options available from San Diego to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 September 2026.

Explore the most affordable flight options available from San Diego to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 September 2026.

Best flights from San Diego to Dulles IntlDiscover carefully curated flight deals from San Diego to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Discover carefully curated flight deals from San Diego to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Direct flights from San Diego to Dulles IntlExplore direct flight options from San Diego to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Explore direct flight options from San Diego to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Last-minute flights from San Diego to Dulles IntlDiscover last-minute flight deals from San Diego to Dulles Intl. Data last updated 30 September 2026 and is based on user searches.

Discover last-minute flight deals from San Diego to Dulles Intl. Data last updated 30 September 2026 and is based on user searches.

One-way flights from San Diego to Dulles IntlSearch for one-way flight options from San Diego to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.

Search for one-way flight options from San Diego to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.

Find flight deals from San Diego to Dulles Intl

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Use the filters below to find and compare flights from San Diego to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from San Diego to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San Diego with our price prediction graph.

Cheapflights Insights

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

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

What is the cheapest time of day to fly from SAN to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Washington, D.C. Dulles Intl Airport as you normally would.

How much does it cost for a return flight from San Diego to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.

San Diego to Washington, D.C. Dulles Intl Airport flights typically cost between £232 and £428 in November.The cheapest return price found within the last 5 days was £258 on United Airlines (7 Nov–8 Nov).

Weekly flight availability from San Diego to Washington, D.C. Dulles Intl Airport

The most flights from SAN to IAD are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from San Diego to Washington, D.C. delayed?

About 9% of weekly flights between San Diego and Washington, D.C. have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for San Diego to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Diego to Washington, D.C. flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 9% of flights being delayed.

Related info for your journey

What airport do you fly from for flights from San Diego to Washington, D.C. Dulles Intl?

How long is the flight from San Diego to Washington, D.C. Dulles Intl Airport?

What are the most reliable airlines from San Diego to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from San Diego to Dulles Intl that include hotel bookings?

How can I find direct flights from San Diego to Dulles Intl?

Can I find deals for business class flights from San Diego to Dulles Intl?

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

Travelling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for San Diego to Dulles Intl

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Complete your trip

Complete your trip to Dulles Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to District of Columbia

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Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 September 2026.

Search flights from San Diego to Dulles Intl by cabin class

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Why should you use Cheapflights to find cheap flight tickets from San Diego to Dulles Intl?

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Can Cheapflights notify me if prices for flights from San Diego to Dulles Intl become cheaper?

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Cheapest flights from San Diego to Dulles Intl
Explore the most affordable flight options available from San Diego to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 September 2026.

Best flights from San Diego to Dulles Intl
Discover carefully curated flight deals from San Diego to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Direct flights from San Diego to Dulles Intl
Explore direct flight options from San Diego to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Last-minute flights from San Diego to Dulles Intl
Discover last-minute flight deals from San Diego to Dulles Intl. Data last updated 30 September 2026 and is based on user searches.

One-way flights from San Diego to Dulles Intl
Search for one-way flight options from San Diego to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.

San Diego to Washington, D.C. Dulles Intl Airport flights typically cost between £232 and £428 in November.
The cheapest return price found within the last 5 days was £258 on United Airlines (7 Nov–8 Nov).