Route guide · 2,271 miles
Cheap Flights from San Diego to Washington
SAN → DCA · Nonstop 5h 7m · Live round-trip fares
The run from San Diego (SAN) to Washington (DCA) is 2,271 miles of sky, and ticket prices on it are anything but steady. One week can cost double the next. Booking about 4–8 weeks in advance — and watching fares with a free Airfare Deal alert — is how regulars on this route keep costs down.
Live fares for SAN → DCA are updating. Use the search below for real-time prices.
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See live fares
Updated daily
Flight time
5h 7m
Nonstop, typical
Distance
2,271 mi
SAN → DCA
Book ahead
4–8 weeks
Best window, typically
Nonstop airlines
1
American Airlines
Nonstop flights from San Diego to Washington
The fastest way between the two cities is the nonstop: about 5h 7m for the 2,271-mile run from SAN to DCA. Those flights are flown by American Airlines. Prices behave best when you book 4–8 weeks out.
Booking insights: San Diego → Washington
- Distance: 2,271 miles · nonstop flight time: 5h 7m.
- Cheapest upcoming week in the live data starts around Oct 29, with fares from $133.
- Fares tend to bottom out when you book about 4–8 weeks ahead — earlier than that rarely helps, later usually hurts.
- Tuesday and Wednesday departures usually undercut Friday and Sunday fares on routes like this one.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
Price trend
Cheapest departure weeks ahead
Departing around Oct 29 is currently the cheapest window — about $130 less than the nearest weeks. Based on recent fares found for this route; prices change quickly.
Cheapest month · San Diego → Washington
November 2026
Every date's recent round-trip fare, at a glance.
Fares from
$133
Cheapest: Tue, Nov 3 — $133
Get this fare →Recent fares found for specific dates in November 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from San Diego to Washington: what you need to know
The flight
This is one of the long ones: 2,271 miles from SAN to DCA, about 5h 7m on a nonstop. Treat it like a short international flight — real meal plan, charged devices, a layer for the cabin — and the hours go much easier.
Airlines on this route
American Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from San Diego (SAN)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our San Diego airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Washington (DCA)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Washington airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Washington to San Diego fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 2,271 miles, booking 4–8 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Nonstop time on this route is about 5h 7m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
- Flexible dates? Search a few days either side — one day can change the fare a lot.
- Morning flights are delayed less often than evening ones — earlier departures have the best on-time record.
San Diego to Washington flight FAQs
How long is the flight from SAN to DCA?
A nonstop from SAN to DCA clocks in at around 5h 7m for the 2,271-mile trip. If you're connecting, budget an extra 2–4 hours depending on where you stop.
Are there nonstop flights from San Diego to Washington?
American Airlines typically operate nonstop flights from SAN to DCA. Nonstops are usually cheapest when booked 4–8 weeks ahead of departure.
What is the cheapest month to fly from San Diego to Washington?
Fares from San Diego to Washington tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from SAN to DCA?
Walking up to this route at the last minute is the expensive way to do it — prices inside 7 days of departure climb fast. The 4–8 weeks booking window is where the value sits.
What is a good round-trip deal from San Diego to Washington?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from San Diego to Washington?
You'll mainly see American Airlines on San Diego to Washington. Checking each against the live fares below is the surest way to find the lowest price for your dates.
How early should I get to San Diego airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
More cheap flights from San Diego
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