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Cheap Flights from San Diego to Portland

Popular airlines from San Diego to Portland

You can choose from 1 airlines that fly from San Diego to Portland, including Alaska Airlines, Alaska Airlines offers the lowest prices on this route.
Alaska Airlines logo Alaska Airlines
Airlines are determined based on actual purchased flight tickets from San Diego to Portland according to previous 12 months data from Trip.com.

Explore the cheapest flights from San Diego to Portland in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at S$ 116, and round-trip direct tickets start at S$ 309.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flying from San Diego to Portland

The distance between San Diego and Portland is approximately 1,502.8km. It takes around 3 hours 18 minutes on average to fly from San Diego to Portland. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is August.

Cheapest one-way flight priceS$ 116
Cheapest return ticket priceS$ 244
Off-season for travelAugust
Peak season for travelJuly
Flight distance1,502.8km
Average flight time3 hours 18 minutes
Popular airlineAlaska Airlines
Flight statistics for the San Diego–Portland route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from San Diego to Portland.

What is the cheapest month for one-way flights from San Diego to Portland?

The average price of one-way flights from San Diego to Portland purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from San Diego to Portland is April, with an average price of S$ 168, and the most expensive month is December, with an average price of up to S$ 331.

S$ 331
S$ 250
S$ 168
S$ 87
    Cheapest
  • S$ 243
    Jun
  • S$ 288
    Jul
  • S$ 205
    Aug
  • S$ 216
    Sep
  • S$ 215
    Oct
  • S$ 184
    Nov
  • S$ 331
    Dec
  • S$ 260
    Jan
  • S$ 214
    Feb
  • S$ 183
    Mar
  • S$ 168
    Apr
  • S$ 210
    May

Frequently Asked Questions

  • Which airlines offer the cheapest flights from San Diego (SAN) to Portland (PDX)?

    Based on Trip.com data, Alaska Airlines offers one-way fares as low as S$ 116 on Cheapest nonstop routes (e.g. SAN to PDX on Sat, Aug 1), while United Airlines offers Cheapest nonstop round-trips from S$ 244 departing on Mon, Jul 6 and returning on Sun, Jul 12.
  • At the moment, you can catch a direct flight from San Diego to Portland with the following airlines, including: Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 3 hours 18 minutes to fly from San Diego (SAN) to Portland (PDX).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Diego to Portland 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.
  • Based on Trip.com data in the past 4 weeks, there is 9 flight per week flying from San Diego to Portland. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS399 (07:21)
  • To find best deals on flights from San Diego to Portland, 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 Sat, Aug 1, with one-way flights priced at just S$ 116.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska 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 Portland travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from San Diego to Portland is August, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from San Diego to Portland on June 9, 2026 with Alaska Airlines, with prices starting at S$ 99.
  • You can land at any one of the following hubs in Portland, with San Diego International Airport to Portland International Airport (SAN-PDX) is by far the most common option on this route: Portland International Airport (PDX) Hillsboro Airport (HIO).
  • The time difference between Portland and San Diego is 0h.
  • Tickets can only be changed or cancelled 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.

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

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.