$125 Cheap United flights Portland (PDX) to Miami (MIA)

View $125 flight on Thu, Jul 24, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$125 Cheap United flights Portland (PDX) to Miami (MIA)

Prices were available within the past 7 days and start at $125 for one-way flights and $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Apr 14 - Wed, Apr 22
PDX
Portland
MIA
Miami
$244 Roundtrip, found 4 hours ago
$244
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Apr 14 from Portland to Miami, returning Wed, Apr 22, priced at $244 found 4 hours ago
United
Mon, Nov 10 - Thu, Nov 20
PDX
Portland
MIA
Miami
$246 Roundtrip, found 3 hours ago
$246
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Nov 10 from Portland to Miami, returning Thu, Nov 20, priced at $246 found 3 hours ago
United
Fri, Jul 11 - Mon, Jul 21
PDX
Portland
MIA
Miami
$247 Roundtrip, found 2 hours ago
$247
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Jul 11 from Portland to Miami, returning Mon, Jul 21, priced at $247 found 2 hours ago
United
Sun, Aug 17 - Wed, Aug 27
PDX
Portland
MIA
Miami
$251 Roundtrip, found 2 hours ago
$251
Roundtrip
found 2 hours ago
Select United flight, departing Sun, Aug 17 from Portland to Miami, returning Wed, Aug 27, priced at $251 found 2 hours ago
United
Tue, Jul 8 - Tue, Jul 15
PDX
Portland
MIA
Miami
$253 Roundtrip, found 2 hours ago
$253
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Jul 8 from Portland to Miami, returning Tue, Jul 15, priced at $253 found 2 hours ago
United
Wed, Jul 30 - Fri, Aug 8
PDX
Portland
MIA
Miami
$253 Roundtrip, found 4 hours ago
$253
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Jul 30 from Portland to Miami, returning Fri, Aug 8, priced at $253 found 4 hours ago
Flights from Portland (PDX) to Miami (MIA)
Origin airport
Portland Intl.
Destination airport
Miami Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Popular airline
Alaska Airlines
Distance
2696 mi

Frequently asked questions

How much is a United Airlines flight from Portland Intl. Airport (PDX) to Miami Intl. Airport (MIA)?
Landing cheap one-way United Airlines flights from PDX to MIA from $125 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $244 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PDX to MIA with United Airlines?
September is one of the least expensive months to get away to Miami with United Airlines. You could also find fantastic deals on one-way and return fares in October.
What is the cheapest time to book flights from Portland Intl. Airport (PDX) to Miami Intl. Airport (MIA) with United Airlines?
Search for affordable United Airlines flights from Portland Intl. Airport (PDX) to Miami Intl. Airport (MIA) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Portland Intl. Airport (PDX) to Miami Intl. Airport (MIA)?
Click on the "Nonstop" filter when browsing for direct United Airlines flights from PDX to MIA. It's also a great way to compare other carriers offering the same direct trip.
What is the earliest United Airlines flight from PDX to MIA?
To find the earliest departure from PDX to MIA with United Airlines, filter your search by "Morning" and "Early Morning." Booking an early flight generally means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Miami?
Hop on a United Airlines flight from Portland Intl. Airport (PDX) to Miami, and you'll likely touch down at Miami Intl. Airport (MIA). This is the airline's primary hub in this destination.
Why fly with United Airlines from PDX to MIA?
Fly from PDX to MIA with United Airlines and you'll enjoy a range of benefits starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Portland Intl. Airport (PDX) to Miami Intl. Airport (MIA)?
Depending on your ticket type, a fee generally applies if you modify or cancel your flight more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when looking for flights. To learn more about modifying or canceling your reservation, visit "Trips," select your flight and tick "Manage Booking."

Explore a world of travel with Expedia

*Available to One Key members.