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$128+ Cheap flights from Portland to Charleston (PDX - CHS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CHS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Charleston are usually found in January or August, booked 61 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Portland to Charleston

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Charleston (CHS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$255
(Delta)

One-way from

$128
(Delta)

Popular in

December

Cheapest in

January

Average price

$417
From Portland to Charleston
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One-way flight from Portland to Charleston
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Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Charleston

Cheapest flights from Portland to Charleston
Explore the most affordable flight options available from Portland to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1911:12 pmPDX - CHS
1 stop8h 06mAmerican Airlines
Tue 8/267:06 amCHS - PDX
1 stop8h 48mAmerican Airlines
Deal found 7/27$255
This Mytrip deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:07 pmPDX - CHS
2 stops17h 08mMultiple Airlines
Thu 9/189:40 pmCHS - PDX
1 stop16h 01mMultiple Airlines
Deal found 7/28$279
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/27:00 amPDX - CHS
1 stop9h 08mUnited Airlines
Tue 9/92:48 pmCHS - PDX
1 stop8h 15mUnited Airlines
Deal found 7/28$282
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/298:37 pmPDX - CHS
1 stop18h 03mAlaska Airlines
Tue 9/26:17 pmCHS - PDX
1 stop8h 58mAlaska Airlines
Deal found 7/27$284
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:50 pmPDX - CHS
1 stop8h 54mDelta
Wed 10/86:00 amCHS - PDX
1 stop9h 06mDelta
Deal found 7/29$285
This Mytrip deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:07 pmPDX - CHS
2 stops17h 08mSpirit Airlines
Thu 9/1812:10 pmCHS - PDX
3 stops26h 02mSpirit Airlines
Deal found 7/28$338
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:45 amPDX - CHS
2 stops10h 45mSouthwest
Tue 11/117:00 amCHS - PDX
2 stops17h 25mSouthwest
Deal found 7/27$384

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Charleston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Portland to Charleston that are best for you.

Fly from

Portland

Fly to

Charleston

Route

Depart

Return

Price

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Tue 8/19

11:32 am-9:24 pm

1 stop6h 52m

Charleston

Tue 8/26

6:20 am-10:22 am

1 stop7h 02m

$255

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Thu 9/11

12:07 pm-8:15 am

2 stops17h 08m

Charleston

Thu 9/18

9:40 pm-10:41 am

1 stop16h 01m

$279

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Tue 9/2

7:00 am-7:08 pm

1 stop9h 08m

Charleston

Tue 9/9

2:48 pm-8:03 pm

1 stop8h 15m

$282

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Fri 8/29

8:37 pm-5:40 pm

1 stop18h 03m

Charleston

Tue 9/2

6:17 pm-12:15 am

1 stop8h 58m

$284

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Sat 8/23

11:35 am-10:02 pm

1 stop7h 27m

Charleston

Tue 8/26

2:47 pm-8:47 pm

1 stop9h 00m

$296

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Thu 9/11

12:07 pm-8:15 am

2 stops17h 08m

Charleston

Thu 9/18

12:10 pm-11:12 am

3 stops26h 02m

$338

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Sun 10/19

7:05 pm-9:50 am

2 stops11h 45m

Charleston

Tue 10/28

12:50 pm-9:15 pm

2 stops11h 25m

$398

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Wed 10/15

10:10 pm-8:50 am

1 stop7h 40m

$128

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Wed 10/1

6:07 am-7:11 pm

2 stops10h 04m

$133

PortlandCharleston

PDX - CHS

PDXCHS

Portland

Thu 9/11

12:07 pm-8:15 am

2 stops17h 08m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 13 results
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Best time to book a flight from Portland to Charleston

Have a flexible travel schedule? Discover the best time to fly to Charleston from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Charleston

How far ahead should I book a flight from Portland to Charleston?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Charleston. Price data was last updated on July 25, 2025.

The best time to book flights from Portland to Charleston is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Portland to Charleston?

Currently, August is the cheapest month in which you can book a flight from Portland to Charleston (average of $217). Flying from Portland to Charleston in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to CHS?

Find hourly flight availability from Portland to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from Portland to Charleston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 50% versus a flight in the evening.

How much does it cost to fly round-trip from Portland to Charleston?

Reviews of airlines servicing Charleston

Get insights into the airlines that provide service to Charleston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Charleston. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Portland to Charleston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Portland to Charleston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland to Charleston round-trip?

    Cheapflights users have booked flights from Portland to Charleston round-trip from $255. Other airlines that can offer you cheap pricing are United Airlines, from $282, and Alaska Airlines, from $284. These flights start at 41% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Portland to Charleston one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $128. Users have also found prices from $133 and $155 on American Airlines and Spirit Airlines, respectively.

  • Can I find deals for flights from Portland to Charleston that include hotel bookings?

    Yes. In addition to deals on Portland to Charleston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Charleston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Charleston.

  • Can I find deals for business class flights from Portland to Charleston?

    Yes. Cheapflights offers flight deals from Portland to Charleston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Charleston?

    Currently, August is the cheapest month in which you can book a flight from Portland to Charleston (average of $217). Flying from Portland to Charleston in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Charleston?

Book flights to Charleston if you plan to visit one of these locations
North Charleston
Summerville
Walterboro
Mount Pleasant
Isle of Palms
Santee
Edisto Beach

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Charleston

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Top 6 airlines flying from Portland to Charleston

Discover the top 6 airlines that operate flights from Portland to Charleston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$143Average$310FlexibilityNo cancel feeOn-time65%
DeltaCheapest$258Average$435FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$273Average$419FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$274Average$424FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$284Average$445FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$354Average$528FlexibilityNo cancel feeOn-time63%

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