The examples I provided above are going to have the best cost per PQP flying business. As cfischer stated, you can throw more money at it and maybe earn more PQP's per roundtrip, but it's going to cost more!

Long list, but if you're going to look around, look for flights from WAS to these airports - POA, COR, FLN, MDZ, ROS, SSA, LIM, VVI, TUC, LPB, SLA, UIO, CNF, MEC, CLO, CIX, GYE, BOG

Back to throwing money at this to try to earn more PQP's, it may be possible, but costly since business departing the US to Europe, Asia, Africa is expensive!

- WAS-DEL - $2501 USD r/t in business on Turkish, however you won't earn for the IndiGo segments - 16156 miles - 15.48 cpm - https://www.google.com/travel/flight...MbJPZHVmLuhio7
- WAS-BOM - $2978 USD r/t in business on Turkish, but again you won't earn for the IndiGo segments - 16474 miles - 18.08 cpm - https://www.google.com/travel/flight...N32LgSWowQ8jv8
- WAS-CMB - $3431 USD r/t in business on Turkish - 18280 miles - 18.77 cpm - 3046 PQP's at $1.12 each - https://www.google.com/travel/flight...MH6h7b8YVEHBy5
- WAS-MLE - $3626 USD r/t in business on Turkish - 17984 miles - 20.16 cpm - 2996 PQP's at $1.21 each - https://www.google.com/travel/flight...nV1DPqmXXhAWF9
- WAS-LCA - $2313 USD r/t in business on EgyptAir - 12388 miles - 18.67 cpm - 2066 PQP's at $1.11 each - https://www.google.com/travel/flight...Qub93MjkQwtC59
- WAS-MNL - $3506 USD r/t in business on Turkish - 21850 miles - 16.05 cpm - 3636 PQP's at 96.42 cents each - https://www.google.com/travel/flight...nw8cfAvMAMWh3A
- WAS-KUL - $4000 USD r/t in business on Turkish - 20892 miles - 19.15 cpm - 3480 PQP's at $1.14 USD each - https://www.google.com/travel/flight...g7WY4HtKAzGyT8
- WAS-JNB - $3410 USD r/t in business on Ethiopian - 19418 miles - 17.56 cpm - 2838 PQP's at $1.20 USD each - https://www.google.com/travel/flight...mfaRwvbDsSMRn8
- WAS-NBO - $3200 USD r/t in business on Turkish - 15824 miles - 20.22 cpm - 2734 PQP's at $1.17 USD each - https://www.google.com/travel/flight...9EfmPM5ivabC6A
- WAS-DMM - $3118 USD r/t in business on EgyptAir - 13980 miles - 22.3 cpm - 2330 PQP's at $1.33 USD each - https://www.google.com/travel/flight...DBznRKvVa6WUo7 / Book now: WAS to DMM, 11/20 – 12/4
- WAS-HAN - $3552 USD r/t in business on Turksih - 19710 miles - 18.02 cpm - 3280 PQP's at $1.08 USD each - https://www.google.com/travel/flight...dumkKLpNqvnFt6
- WAS-BLR - $3544 USD r/t in business on Turkish / Air India - 17570 miles - 20.17 cpm - 2928 PQP's at $1.21 USD each - Book now: WAS to BLR, 3/2 – 3/15
- WAS-MCT - $3319 USD r/t in business on EgyptAir - 15114 miles - 21.95 cpm - 2520 PQP's at $1.32 USD each - https://www.google.com/travel/flight...WHkTNyDdxKH9y7
- WAS-CAN - $3834 USD r/t in business on EgyptAir - 21632 miles - 17.72 cpm - 3606 PQP's at $1.06 USD each - WAS to CAN, 11/27 – 12/10
- WAS-MRU - $4139 USD r/t in business on Ethiopian / South African - 23234 miles - 17.81 cpm - 3474 PQP's at $1.19 USD each - https://www.google.com/travel/flight...48R8Wtv7bfcbv6
- WAS-PVG - $3539 USD r/t in business on Turkish - 20482 miles - 17.28 cpm - 3406 PQP's at $1.04 USD each - https://www.google.com/travel/flight...ZU8FPCUYFDdv29
- WAS-ADD - $3162 USD r/t in business on EgyptAir - 14746 miles - 21.44 cpm - 2458 PQP's at $1.29 USD each - Book now: WAS to ADD, 11/27 – 12/10
- WAS-ATH - $2345 USD r/t in business on EgyptAir - 13060 miles - 17.95 cpm - 2178 PQP's at $1.08 USD each - https://www.google.com/travel/flight...8eeTv4YwfdoYm7

None of these are a bad deal as far as business class goes departing the United States. I tried to stick to around 20 cpm or less, but as you can see the cost per PQP is high.