Cheap flights from Washington to San Jose, California from $160 DCA, IAD → SJC
Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) → Norman Y. Mineta San Jose International Airport (SJC)
The cheapest return found recently is $487 with United Airlines, 19 Nov – 25 Nov, found yesterday. The cheapest one-way found recently is $160 with Southwest Airlines, 7 Dec, found yesterday.
- Cheapest one-way found recently
- $160, found yesterday
- Cheapest return found recently
- $487, 19 Nov to 25 Nov
- Usual return price
- $471 to $501
Return
The cheapest return fare on each of 3 departure dates is usually $471 to $501.
Cheapest return found recently
$487
19 Nov – 25 Nov · United Airlines
Washington Dulles International Airport (IAD) → Norman Y. Mineta San Jose International Airport (SJC)
Leaves 10:00 a.m. · Return leaves 1:00 p.m. · 15 h 23 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$487 19 Nov – 25 Novfound yesterdaySee prices for these dates
$455 17 Nov – 25 Novfound 4 days agoSee prices for these dates
What have prices looked like?
Over 46 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $307 to $603.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 17 Nov to 19 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold 6-night return fares on 1 other departure date within 3 days of 19 Nov, and it is not cheaper.
Every date we hold
4 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 17 Nov – 25 Nov | $455 | Southwest Airlines | Ronald Reagan National Airport (DCA) → Norman Y. Mineta San Jose International Airport (SJC) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 18 Nov – 24 Nov | $515 | United Airlines | Ronald Reagan National Airport (DCA) → Norman Y. Mineta San Jose International Airport (SJC) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 19 Nov – 25 Nov | $487 | United Airlines | Washington Dulles International Airport (IAD) → Norman Y. Mineta San Jose International Airport (SJC) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Airlines on the cheapest dates: United Airlines, Southwest Airlines.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$160
7 Dec · Southwest Airlines
Ronald Reagan National Airport (DCA) → Norman Y. Mineta San Jose International Airport (SJC)
Leaves 12:45 p.m. · 9 h 15 min trip
1 stop
found yesterday
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$160 7 Decfound yesterdayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 34 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was $105 to $172.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 7 Dec to compare.
Every date we hold
2 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 7 Dec | $160 | Southwest Airlines | Ronald Reagan National Airport (DCA) → Norman Y. Mineta San Jose International Airport (SJC) | 1 stop | found yesterday | Open this trip |
Airlines on the cheapest dates: Southwest Airlines.
Premium cabin fares from Washington to San Jose
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 19 Nov – 25 Nov in another cabin: Premium economy · Business · First
Today's prices for 7 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Washington to San Jose?
Return
Fares 180 or more days before departure were typically 23% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (46 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $430 | $343 | +30% | 16 |
| 7–13 days | $385 | $359 | +17% | 17 |
| 30–59 days | $425 | $364 | +29% | 9 |
| 60–89 days | $603 | $603 | +83% | 7 |
| 90–179 days | $417 | $398 | +26% | 19 |
| 180+ days | $330 | $307 | Cheapest seen | 16 |
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 24 Sept and 12 Nov (34 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 30–59 days | $105 | $105 | Cheapest seen | 12 |
| 90–179 days | $172 | $132 | +64% | 23 |
| 180+ days | $157 | $151 | +50% | 21 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Washington → San Francisco
67 km from San Jose
$466
$21 less than flying to San Jose
19 Nov – 25 Nov · DCA → SFO · out 1 stop, back 1 stop
found yesterday
Washington → Sacramento
142 km from San Jose
$607
$120 more than flying to San Jose
1 Jul 2027 – 4 Jul 2027 · IAD → SMF · out 1 stop, back 1 stop
found 6 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 19 Nov – 25 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Washington to San Jose?
The cheapest return found recently is $487 with United Airlines, 19 Nov to 25 Nov, found yesterday. The cheapest return we hold, of any age, is $455 with Southwest Airlines, 17 Nov to 25 Nov, found 4 days ago. The cheapest return fare on each of 3 departure dates is usually $471 to $501.
How much is a one-way flight from Washington to San Jose?
The cheapest one-way found recently is $160 with Southwest Airlines, 7 Dec, found yesterday.
How far ahead should I book a flight from Washington to San Jose?
In 46 days of prices between 24 Sept and 12 Nov, return fares 180 or more days before departure were typically 23% lower than 0 to 6 days before departure. In 34 days of prices between 24 Sept and 12 Nov, one-way fares were cheapest 30 to 59 days before departure.
How long is the flight from Washington to San Jose?
The cheapest one-way found recently, with Southwest Airlines on 7 Dec, takes 9 h 15 min with 1 stop.
Which airlines have the cheapest flights from Washington to San Jose?
Between 17 Nov and 19 Nov, United Airlines has the cheapest return on 2 of the 3 departure dates we hold, and Southwest Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work