Flight Info | Washington D.C. to San Jose

The distance between Washington D.C. and San Jose is approximately 3,890.46 km. It takes around 8 hours 35 minutes on average to fly from Washington D.C. to San Jose. Based on Trip.com's data, travel demand peaks in July. The cheapest month to book is September.

Cheapest one-way
$103
Frontier Airlines Frontier Airlines WAS-SJC 9h 43m · 1 stop Thu, Sep 10
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Cheapest round-trip
$271
Alaska Airlines Alaska Airlines WAS-SJC 10h 5m · 2 stops Fri, Aug 21 - Sun, Aug 23
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When to travel
September
Cheapest
July
Peak season for travel
Route details
3,890.46 km
Flight distance
8h 35m
Average flight time

Find flight deals from Washington D.C. to San Jose for the next 3 months. Book one way flights from $103 or round trip flights from $271.

Popular airlines from Washington D.C. to San Jose

You can choose from 3 airlines that fly from Washington D.C. to San Jose, including Delta Air Lines, United Airlines, and Alaska Airlines. Frontier Airlines has lowest fares on this route.
Delta Air Lines logo Delta Air Lines
United Airlines logo United Airlines
Alaska Airlines logo Alaska Airlines
Airlines are determined based on actual purchased flight tickets from Washington D.C. to San Jose according to previous 12 months data from Trip.com.

Trip.com price insights on flights from Washington D.C. to San Jose

Which month has the cheapest one-way flights from Washington D.C. to San Jose?

The average price of one-way flights from Washington D.C. to San Jose purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Washington D.C. to San Jose is September, with an average price of $148; while the month with the highest flight price is usually March, with an average price of up to $505.

$505
$327
$148
0
    Cheapest
  • $243
    Aug
  • $148
    Sep
  • $353
    Oct
  • $224
    Nov
  • $491
    Dec
  • $486
    Jan
  • $388
    Feb
  • $505
    Mar
  • $316
    Apr
  • $331
    May
  • $385
    Jun
  • $209
    Jul

When is the cheapest day to fly from Washington D.C. to San Jose during Labor Day?

Data is based on the lowest one-way price from Washington D.C. to San Jose during Labor Day on Trip.com in the past 3 days.

Labor Day is scheduled for Sep 7. The cheapest flights from Washington D.C. to San Jose are available on Sep 9, with fares starting at $105.

$200
$153
$105
$58
    Cheapest
  • $167
    3
    Sep
  • $142
    4
  • $142
    5
  • $167
    6
  • $200
    7
  • $190
    8
  • $105
    9

Frequently Asked Questions

  • What are the cheapest flights from Washington D.C. to San Jose (WAS-SJC)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as $103 on Cheapest nonstop routes (e.g. IAD to SJC on Thu, Sep 10), while Alaska Airlines offers Cheapest nonstop round-trips from $271 departing on Fri, Aug 21 and returning on Sun, Aug 23.
  • At the moment, several airlines serve connecting flights from Washington D.C. to San Jose, including: Delta Air Lines United Airlines Alaska Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • It takes around 8 hours 35 minutes to fly from Washington D.C. (WAS) to San Jose (SJC).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to San Jose is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Washington D.C. to San Jose, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Sep 10, with one-way flights priced at just $103.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Jose travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Washington D.C. to San Jose is September, when demand for travel is lower.
  • After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Washington D.C. to San Jose on August 12, 2026 with Frontier Airlines, with prices starting at $95.
  • You can land at any one of the following hubs in San Jose, with Ronald Reagan Washington National Airport to San Jose Mineta International Airport (DCA-SJC) is by far the most common option on this route: San Jose Mineta International Airport (SJC).
  • The time difference between San Jose and Washington D.C. is 3h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Washington D.C. to San Jose is $242. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Washington D.C. to San Jose is $509. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Washington D.C. and San Jose, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.