Seattle (SEA) to Philadelphia (PHL) flights

Program	Economy	Taxes and fees
American AAdvantageOn American Airlines	5,500	$5.60
Alaska Atmos RewardsOn Alaska Airlines	12,500	$5.60
Iberia ClubOn American Airlines	13,000	$5.60
Cathay Pacific Asia MilesOn American Airlines	15,000	$5.60
SAS EuroBonusOn Delta Air Lines	15,000	$56–112
Qatar Airways Privilege ClubOn American Airlines	16,000	$5.60
Finnair PlusOn American Airlines	16,500	$5.60
British Airways ClubOn American Airlines	20,000	$5.60
Starlux (COSMILE)On Alaska Airlines	20,000	$38.60
Qantas Frequent FlyerOn American Airlines	20,700	$5.60
Virgin Atlantic Flying ClubOn Delta Air Lines	22,000	$5.60
JAL Mileage BankOn American Airlines	23,000	$5.60

Business and first class prices, and 1 more programs, are in the Award Flight Pricer. Chart prices need award space on your date, so search it before you transfer points.

• 
  Alaska Airlinesoneworld · bookable with 9 programsWho books it
• 
  American Airlinesoneworld · bookable with 9 programsWho books it
• 
  Delta Air LinesSkyTeam · bookable with 8 programsWho books it

• Alaska Atmos RewardsBooks Alaska Airlines, American Airlines
• American AAdvantageBooks Alaska Airlines, American Airlines
• British Airways ClubBooks Alaska Airlines, American Airlines
• Cathay Pacific Asia MilesBooks Alaska Airlines, American Airlines
• Finnair PlusBooks Alaska Airlines, American Airlines
• Iberia ClubBooks Alaska Airlines, American Airlines
• JAL Mileage BankBooks Alaska Airlines, American Airlines
• Qantas Frequent FlyerBooks Alaska Airlines, American Airlines
• Qatar Airways Privilege ClubBooks Alaska Airlines, American Airlines
• Aeromexico RewardsBooks Delta Air Lines
• Air France-KLM Flying BlueBooks Delta Air Lines
• China Eastern Eastern MilesBooks Delta Air Lines
• Delta SkyMilesBooks Delta Air Lines
• Garuda Indonesia GarudaMilesBooks Delta Air Lines
• Korean Air SKYPASSBooks Delta Air Lines
• SAS EuroBonusBooks Delta Air Lines
• Virgin Atlantic Flying ClubBooks Delta Air Lines

• Via Minneapolis (MSP)Delta Air Lines and Sun Country Airlines the whole way
  
  
  
  
  
  
• Via Detroit (DTW)Delta Air Lines the whole way
  
  
  
  
  
• Via Cleveland (CLE)Alaska Airlines, then American Airlines
  
  
• Via Milwaukee (MKE)Alaska Airlines, then American Airlines
  
  
• Via Pittsburgh (PIT)American Airlines the whole way
  
  
  
• Via Chicago (ORD)American Airlines and United Airlines the whole way
  
  
  
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• Via Chicago (MDW)Southwest Airlines the whole way
  
  
• Via Toronto (YYZ)Air Canada the whole way
  
  
  
  
• Via Columbus (CMH)Alaska Airlines, then American Airlines
  
  
• Via Baltimore (BWI)Southwest Airlines the whole way
  
  
  
• Via Dulles (IAD)United Airlines the whole way
  
  
  
  
• Via Washington (DCA)Alaska Airlines and Delta Air Lines, then American Airlines
  
  
  
• Via Indianapolis (IND)American Airlines the whole way
  
  
  
• Via Omaha (OMA)Alaska Airlines, then American Airlines
  
  
• Via Cincinnati (CVG)Delta Air Lines and Alaska Airlines, then American Airlines