Route guide · 2,283 miles
Cheap Flights from Washington to Los Angeles
IAD → LAX · Nonstop 5h 8m · Live round-trip fares
The run from Washington (IAD) to Los Angeles (LAX) is 2,283 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 Flyzento alert — is how regulars on this route keep costs down.
Live fares for IAD → LAX are updating. Use the search below for real-time prices.
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Updated daily
Flight time
5h 8m
Nonstop, typical
Distance
2,283 mi
IAD → LAX
Book ahead
4–8 weeks
Best window, typically
Nonstop airlines
2
American Airlines, United Airlines
Nonstop flights from Washington to Los Angeles
Nonstop flights from Washington to Los Angeles are flown by American Airlines, United Airlines. The 2,283-mile trip takes about 5h 8m gate to gate, and nonstops are usually cheapest when booked 4–8 weeks ahead.
Booking insights: Washington → Los Angeles
- Distance: 2,283 miles · nonstop flight time: 5h 8m.
- Fares tend to bottom out when you book about 4–8 weeks ahead — earlier than that rarely helps, later usually hurts.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
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Flying from Washington to Los Angeles: what you need to know
The flight
This is one of the long ones: 2,283 miles from IAD to LAX, about 5h 8m 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 and United Airlines fly 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 Washington (IAD)
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 Washington airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Los Angeles (LAX)
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 Los Angeles airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Los Angeles to Washington fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 2,283 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
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 5h 8m — 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.
Washington to Los Angeles flight FAQs
How long is the flight from IAD to LAX?
Plan on about 5h 8m in the air for a nonstop from Washington to Los Angeles — the route runs roughly 2,283 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Washington to Los Angeles?
American Airlines, United Airlines typically operate nonstop flights from IAD to LAX. Nonstops are usually cheapest when booked 4–8 weeks ahead of departure.
What is the cheapest month to fly from Washington to Los Angeles?
Fares from Washington to Los Angeles 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 Flyzento alert and we'll flag the dips for your dates.
How much are last minute flights from IAD to LAX?
Last-minute flights from IAD to LAX (booked within 7 days of departure) typically cost noticeably more than fares booked 4–8 weeks out. Booking early is the smarter move.
What is a good round-trip deal from Washington to Los Angeles?
A good deal is anything at or below the recent fares shown above. Set a free Flyzento alert and we'll ping you the moment fares drop.
Which airlines fly from Washington to Los Angeles?
You'll mainly see American Airlines, United Airlines on Washington to Los Angeles. 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 Washington 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.
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