I just did a sample London to Berlin booking.
Going Out
Web fare Adult Reg Fare 0.01 GBP
Wed, 19 Apr 06
Flight 8542
06:25 Depart London Stansted (STN)
09:10 Arrive Berlin Schonefeld (SXF)
Coming Back
Web fare Adult Reg Fare 0.01 GBP
Wed, 26 Apr 06
Flight 8547
21:45 Depart Berlin Schonefeld (SXF)
22:30 Arrive London Stansted (STN)
Pricing
Going Out (Web fare)
1 @ 0.01 GBP 0.01 GBP
Taxes, Fees & Charges 15.18 GBP
Coming Back (Web fare)
1 @ 0.01 GBP 0.01 GBP
Taxes, Fees & Charges 12.09 GBP
Total Cost of Flight 27.29 GBP (USD 47.66)
Try and find a fare between any two airports in the USA for $47.66 including tax. I bet $1,000,000 that nobody will find one.
Incidentally they made a profit last year of € 239 million. How much did JetBlue or Southwest make?